Verify contract on BSCscan: Error! Unable to generate Contract ByteCode and ABI

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1

Compiler debug log:
Error! Unable to generate Contract ByteCode and ABI
Found the following ContractName(s) in source code : BEP20Token , Context , IBEP20 , Ownable , SafeMath
But we were unable to locate a matching bytecode (err_code_2)
Can you help me??? BSCAN BEP20 testnet
Contract Address: 0x2675d2a017186cd5fc2a12a5dfba7804fd877acb

1 Like
2

Hi @Mai_Hoang_Anh,

Welcome to the community :wave:

Assuming you have already flattened your contract, specified the correct version of Solidity compiler and whether optimization was enabled, you can encode your constructor parameters with https://abi.hashex.org/

If you get stuck please share your Solidity code.

3

hey, I was also stucked, but I found the way. Just flatten the contract and paste the flatten contract. it will work smoothly.

1 Like
4

just flatten the contract how to do that?

1 Like
5

Hi @coderbang1,

6

A post was split to a new topic: Verify standard ERC20 on BSC

9

//SPDX-License-Identifier: Unlicensed

pragma solidity >=0.6.8;

interface IBEP20 {

function totalSupply() external view returns (uint256);

/**
 * @dev Returns the amount of tokens owned by `account`.
 */
function balanceOf(address account) external view returns (uint256);

/**
 * @dev Moves `amount` tokens from the caller's account to `recipient`.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transfer(address recipient, uint256 amount) external returns (bool);

/**
 * @dev Returns the remaining number of tokens that `spender` will be
 * allowed to spend on behalf of `owner` through {transferFrom}. This is
 * zero by default.
 *
 * This value changes when {approve} or {transferFrom} are called.
 */
function allowance(address owner, address spender) external view returns (uint256);

/**
 * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * IMPORTANT: Beware that changing an allowance with this method brings the risk
 * that someone may use both the old and the new allowance by unfortunate
 * transaction ordering. One possible solution to mitigate this race
 * condition is to first reduce the spender's allowance to 0 and set the
 * desired value afterwards:
 * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
 *
 * Emits an {Approval} event.
 */
function approve(address spender, uint256 amount) external returns (bool);

/**
 * @dev Moves `amount` tokens from `sender` to `recipient` using the
 * allowance mechanism. `amount` is then deducted from the caller's
 * allowance.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

/**
 * @dev Emitted when `value` tokens are moved from one account (`from`) to
 * another (`to`).
 *
 * Note that `value` may be zero.
 */
event Transfer(address indexed from, address indexed to, uint256 value);

/**
 * @dev Emitted when the allowance of a `spender` for an `owner` is set by
 * a call to {approve}. `value` is the new allowance.
 */
event Approval(address indexed owner, address indexed spender, uint256 value);

}

/**

  • @dev Wrappers over Solidity’s arithmetic operations with added overflow
  • checks.
  • Arithmetic operations in Solidity wrap on overflow. This can easily result
  • in bugs, because programmers usually assume that an overflow raises an
  • error, which is the standard behavior in high level programming languages.
  • SafeMath restores this intuition by reverting the transaction when an
  • operation overflows.
  • Using this library instead of the unchecked operations eliminates an entire
  • class of bugs, so it’s recommended to use it always.
    */

library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity’s + operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, “SafeMath: addition overflow”);

    return c;
}

/**
 * @dev Returns the subtraction of two unsigned integers, reverting on
 * overflow (when the result is negative).
 *
 * Counterpart to Solidity's `-` operator.
 *
 * Requirements:
 *
 * - Subtraction cannot overflow.
 */
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    return sub(a, b, "SafeMath: subtraction overflow");
}

/**
 * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
 * overflow (when the result is negative).
 *
 * Counterpart to Solidity's `-` operator.
 *
 * Requirements:
 *
 * - Subtraction cannot overflow.
 */
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b <= a, errorMessage);
    uint256 c = a - b;

    return c;
}

/**
 * @dev Returns the multiplication of two unsigned integers, reverting on
 * overflow.
 *
 * Counterpart to Solidity's `*` operator.
 *
 * Requirements:
 *
 * - Multiplication cannot overflow.
 */
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
    if (a == 0) {
        return 0;
    }

    uint256 c = a * b;
    require(c / a == b, "SafeMath: multiplication overflow");

    return c;
}

/**
 * @dev Returns the integer division of two unsigned integers. Reverts on
 * division by zero. The result is rounded towards zero.
 *
 * Counterpart to Solidity's `/` operator. Note: this function uses a
 * `revert` opcode (which leaves remaining gas untouched) while Solidity
 * uses an invalid opcode to revert (consuming all remaining gas).
 *
 * Requirements:
 *
 * - The divisor cannot be zero.
 */
function div(uint256 a, uint256 b) internal pure returns (uint256) {
    return div(a, b, "SafeMath: division by zero");
}

/**
 * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
 * division by zero. The result is rounded towards zero.
 *
 * Counterpart to Solidity's `/` operator. Note: this function uses a
 * `revert` opcode (which leaves remaining gas untouched) while Solidity
 * uses an invalid opcode to revert (consuming all remaining gas).
 *
 * Requirements:
 *
 * - The divisor cannot be zero.
 */
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b > 0, errorMessage);
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
}

/**
 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
 * Reverts when dividing by zero.
 *
 * Counterpart to Solidity's `%` operator. This function uses a `revert`
 * opcode (which leaves remaining gas untouched) while Solidity uses an
 * invalid opcode to revert (consuming all remaining gas).
 *
 * Requirements:
 *
 * - The divisor cannot be zero.
 */
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    return mod(a, b, "SafeMath: modulo by zero");
}

/**
 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
 * Reverts with custom message when dividing by zero.
 *
 * Counterpart to Solidity's `%` operator. This function uses a `revert`
 * opcode (which leaves remaining gas untouched) while Solidity uses an
 * invalid opcode to revert (consuming all remaining gas).
 *
 * Requirements:
 *
 * - The divisor cannot be zero.
 */
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b != 0, errorMessage);
    return a % b;
}

}

abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}

function _msgData() internal view virtual returns (bytes memory) {
    this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
    return msg.data;
}

}

/**

  • @dev Collection of functions related to the address type
    /
    library Address {
    /    *

    • @dev Returns true if account is a contract.
    • [IMPORTANT]
    • ====
    • It is unsafe to assume that an address for which this function returns
    • false is an externally-owned account (EOA) and not a contract.
    • Among others, isContract will return false for the following
    • types of addresses:
      • an externally-owned account
      • a contract in construction
      • an address where a contract will be created
      • an address where a contract lived, but was destroyed
    • ====
      */
      function isContract(address account) internal view returns (bool) {
      // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
      // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
      // for accounts without code, i.e. keccak256('')
      bytes32 codehash;
      bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
      // solhint-disable-next-line no-inline-assembly
      assembly { codehash := extcodehash(account) }
      return (codehash != accountHash && codehash != 0x0);
      }

    /**

    /**

    • @dev Performs a Solidity function call using a low level call. A
    • plaincall is an unsafe replacement for a function call: use this
    • function instead.
    • If target reverts with a revert reason, it is bubbled up by this
    • function (like regular Solidity function calls).
    • Returns the raw returned data. To convert to the expected return value,
    • use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[abi.decode].
    • Requirements:
      • target must be a contract.
      • calling target with data must not revert.
    • Available since v3.1.
      */
      function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, “Address: low-level call failed”);
      }

    /**

    • @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], but with
    • errorMessage as a fallback revert reason when target reverts.
    • Available since v3.1.
      */
      function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
      return _functionCallWithValue(target, data, 0, errorMessage);
      }

    /**

    • @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall],
    • but also transferring value wei to target.
    • Requirements:
      • the calling contract must have an BNB balance of at least value.
      • the called Solidity function must be payable.
    • Available since v3.1.
      */
      function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
      return functionCallWithValue(target, data, value, “Address: low-level call with value failed”);
      }

    /**

    • @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[functionCallWithValue], but
    • with errorMessage as a fallback revert reason when target reverts.
    • Available since v3.1.
      */
      function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
      require(address(this).balance >= value, “Address: insufficient balance for call”);
      return _functionCallWithValue(target, data, value, errorMessage);
      }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
    require(isContract(target), “Address: call to non-contract”);

     // solhint-disable-next-line avoid-low-level-calls
 (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
 if (success) {
     return returndata;
 } else {
     // Look for revert reason and bubble it up if present
     if (returndata.length > 0) {
         // The easiest way to bubble the revert reason is using memory via assembly

         // solhint-disable-next-line no-inline-assembly
         assembly {
             let returndata_size := mload(returndata)
             revert(add(32, returndata), returndata_size)
         }
     } else {
         revert(errorMessage);
     }
 }

    }
    }

/**

  • @dev Contract module which provides a basic access control mechanism, where

  • there is an account (an owner) that can be granted exclusive access to

  • specific functions.

  • By default, the owner account will be the one that deploys the contract. This

  • can later be changed with {transferOwnership}.

  • This module is used through inheritance. It will make available the modifier

  • onlyOwner, which can be applied to your functions to restrict their use to

  • the owner.
    */
    contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    uint256 private _lockTime;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**

    • @dev Initializes the contract setting the deployer as the initial owner.
      */
      constructor () internal {
      address msgSender = _msgSender();
      _owner = msgSender;
      emit OwnershipTransferred(address(0), msgSender);
      }

    /**

    • @dev Returns the address of the current owner.
      */
      function owner() public view returns (address) {
      return _owner;
      }

    /**

    • @dev Throws if called by any account other than the owner.
      */
      modifier onlyOwner() {
      require(_owner == _msgSender(), “Ownable: caller is not the owner”);
      _;
      }

    /**

    • @dev Leaves the contract without owner. It will not be possible to call
    • onlyOwner functions anymore. Can only be called by the current owner.
    • NOTE: Renouncing ownership will leave the contract without an owner,
    • thereby removing any functionality that is only available to the owner.
      */
      function renounceOwnership() public virtual onlyOwner {
      emit OwnershipTransferred(_owner, address(0));
      _owner = address(0);
      }

    /**

    • @dev Transfers ownership of the contract to a new account (newOwner).
    • Can only be called by the current owner.
      */
      function transferOwnership(address newOwner) public virtual onlyOwner {
      require(newOwner != address(0), “Ownable: new owner is the zero address”);
      emit OwnershipTransferred(_owner, newOwner);
      _owner = newOwner;
      }

    function geUnlockTime() public view returns (uint256) {
    return _lockTime;
    }

    //Locks the contract for owner for the amount of time provided
    function lock(uint256 time) public virtual onlyOwner {
    _previousOwner = _owner;
    _owner = address(0);
    _lockTime = now + time;
    emit OwnershipTransferred(_owner, address(0));
    }

    //Unlocks the contract for owner when _lockTime is exceeds
    function unlock() public virtual {
    require(_previousOwner == msg.sender, “You don’t have permission to unlock”);
    require(now > _lockTime , “Contract is locked until 7 days”);
    emit OwnershipTransferred(_owner, _previousOwner);
    _owner = _previousOwner;
    }
    }

interface IPancakeFactory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
function setFeeToSetter(address) external;

}

interface IPancakePair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
    address indexed sender,
    uint amount0In,
    uint amount1In,
    uint amount0Out,
    uint amount1Out,
    address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;

function initialize(address, address) external;

}

interface IPancakeRouter01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);

function addLiquidity(
    address tokenA,
    address tokenB,
    uint amountADesired,
    uint amountBDesired,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
    address token,
    uint amountTokenDesired,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
    uint amountOut,
    uint amountInMax,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);

}

interface IPancakeRouter02 is IPancakeRouter01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;

}

// File: contracts/protocols/bep/Utils.sol

pragma solidity >=0.6.8;

library Utils {
using SafeMath for uint256;

function random(uint256 from, uint256 to, uint256 salty) private view returns (uint256) {
    uint256 seed = uint256(
        keccak256(
            abi.encodePacked(
                block.timestamp + block.difficulty +
                ((uint256(keccak256(abi.encodePacked(block.coinbase)))) / (now)) +
                block.gaslimit +
                ((uint256(keccak256(abi.encodePacked(msg.sender)))) / (now)) +
                block.number +
                salty
            )
        )
    );
    return seed.mod(to - from) + from;
}



function calculateBNBReward(
    uint256 _tTotal,
    uint256 currentBalance,
    uint256 currentBNBPool,
    uint256 totalSupply,
    address ofAddress
) public view returns (uint256) {
    uint256 bnbPool = currentBNBPool;

    // calculate reward to send
 
    uint256 multiplier = 100;

    // now calculate reward
    uint256 reward = bnbPool.mul(multiplier).mul(currentBalance).div(100).div(totalSupply);

    return reward;
}

function calculateTopUpClaim(
    uint256 currentRecipientBalance,
    uint256 basedRewardCycleBlock,
    uint256 threshHoldTopUpRate,
    uint256 amount
) public returns (uint256) {
    if (currentRecipientBalance == 0) {
        return block.timestamp + basedRewardCycleBlock;
    }
    else {
        uint256 rate = amount.mul(100).div(currentRecipientBalance);

        if (uint256(rate) >= threshHoldTopUpRate) {
            uint256 incurCycleBlock = basedRewardCycleBlock.mul(uint256(rate)).div(100);

            if (incurCycleBlock >= basedRewardCycleBlock) {
                incurCycleBlock = basedRewardCycleBlock;
            }

            return incurCycleBlock;
        }

        return 0;
    }
}

function swapTokensForEth(
    address routerAddress,
    uint256 tokenAmount
) public {
    IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

    // generate the pancake pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = address(this);
    path[1] = pancakeRouter.WETH();

    // make the swap
    pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
        tokenAmount,
        0, // accept any amount of BNB
        path,
        address(this),
        block.timestamp
    );
}

function swapETHForTokens(
    address routerAddress,
    address recipient,
    uint256 ethAmount
) public {
    IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

    // generate the pancake pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = pancakeRouter.WETH();
    path[1] = address(this);

    // make the swap
    pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(
        0, // accept any amount of BNB
        path,
        address(recipient),
        block.timestamp + 360
    );
}

function addLiquidity(
    address routerAddress,
    address owner,
    uint256 tokenAmount,
    uint256 ethAmount
) public {
    IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

    // add the liquidity
    pancakeRouter.addLiquidityETH{value : ethAmount}(
        address(this),
        tokenAmount,
        0, // slippage is unavoidable
        0, // slippage is unavoidable
        owner,
        block.timestamp + 360
    );
}

}

// File: contracts/protocols/bep/ReentrancyGuard.sol

pragma solidity >=0.6.8;

/**

  • @dev Contract module that helps prevent reentrant calls to a function.

  • Inheriting from ReentrancyGuard will make the {nonReentrant} modifier

  • available, which can be applied to functions to make sure there are no nested

  • (reentrant) calls to them.

  • Note that because there is a single nonReentrant guard, functions marked as

  • nonReentrant may not call one another. This can be worked around by making

  • those functions private, and then adding external nonReentrant entry

  • points to them.

  • TIP: If you would like to learn more about reentrancy and alternative ways

  • to protect against it, check out our blog post

  • https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
    */
    abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot’s contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler’s defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction’s gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor () public {
    _status = _NOT_ENTERED;
    }

    /**

    • @dev Prevents a contract from calling itself, directly or indirectly.

    • Calling a nonReentrant function from another nonReentrant

    • function is not supported. It is possible to prevent this from happening

    • by making the nonReentrant function external, and make it call a

    • private function that does the actual work.
      */
      modifier nonReentrant() {
      // On the first call to nonReentrant, _notEntered will be true
      require(_status != _ENTERED, “ReentrancyGuard: reentrant call”);

      // Any calls to nonReentrant after this point will fail
      _status = _ENTERED;

      _;

      // By storing the original value once again, a refund is triggered (see
      // https://eips.ethereum.org/EIPS/eip-2200)
      _status = _NOT_ENTERED;
      }

    modifier isHuman() {
    require(tx.origin == msg.sender, “sorry humans only”);
    _;
    }
    }

// File: contracts/protocols/LM.sol

pragma solidity >=0.6.8;
pragma experimental ABIEncoderV2;

contract RewardToken is Context, IBEP20, Ownable, ReentrancyGuard {
using SafeMath for uint256;
using Address for address;

address payable public charityAddress = 0x97dC0294CbD53798C74fC67272Ffb0F4aEa81C77;

mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;

mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcluded;
mapping(address => bool) private _isExcludedFromMaxTx;

address[] private _excluded;

uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1000000000 * 10 ** 6 * 10 ** 9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;

string private _name = "HODL";
string private _symbol = "HODL";
uint8 private _decimals = 9;

IPancakeRouter02 public immutable pancakeRouter;
address public immutable pancakePair;

bool inSwapAndLiquify = false;

event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
    uint256 tokensSwapped,
    uint256 ethReceived,
    uint256 tokensIntoLiqudity
);

event ClaimBNBSuccessfully(
    address recipient,
    uint256 ethReceived,
    uint256 nextAvailableClaimDate
);

modifier lockTheSwap {
    inSwapAndLiquify = true;
    _;
    inSwapAndLiquify = false;
}

constructor (
    address payable routerAddress
) public {
    _rOwned[_msgSender()] = _rTotal;

    IPancakeRouter02 _pancakeRouter = IPancakeRouter02(routerAddress);
    // Create a pancake pair for this new token
    pancakePair = IPancakeFactory(_pancakeRouter.factory())
    .createPair(address(this), _pancakeRouter.WETH());

    // set the rest of the contract variables
    pancakeRouter = _pancakeRouter;

    //exclude owner and this contract from fee
    _isExcludedFromFee[owner()] = true;
    _isExcludedFromFee[address(this)] = true;
    
   

    // exclude from max tx
    _isExcludedFromMaxTx[owner()] = true;
    _isExcludedFromMaxTx[address(this)] = true;
    _isExcludedFromMaxTx[address(0x000000000000000000000000000000000000dEaD)] = true;
    _isExcludedFromMaxTx[address(0)] = true;
   
    emit Transfer(address(0), _msgSender(), _tTotal);
}

function name() public view returns (string memory) {
    return _name;
}

function symbol() public view returns (string memory) {
    return _symbol;
}

function decimals() public view returns (uint8) {
    return _decimals;
}

function totalSupply() public view override returns (uint256) {
    return _tTotal;
}

function balanceOf(address account) public view override returns (uint256) {
    if (_isExcluded[account]) return _tOwned[account];
    return tokenFromReflection(_rOwned[account]);
}

function transfer(address recipient, uint256 amount) public override returns (bool) {
    _transfer(_msgSender(), recipient, amount, 0);
    return true;
}

function allowance(address owner, address spender) public view override returns (uint256) {
    return _allowances[owner][spender];
}

function approve(address spender, uint256 amount) public override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
}

function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
    _transfer(sender, recipient, amount, 0);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance"));
    return true;
}

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
    return true;
}

function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "BEP20: decreased allowance below zero"));
    return true;
}

function isExcludedFromReward(address account) public view returns (bool) {
    return _isExcluded[account];
}

function totalFees() public view returns (uint256) {
    return _tFeeTotal;
}

function deliver(uint256 tAmount) public {
    address sender = _msgSender();
    require(!_isExcluded[sender], "Excluded addresses cannot call this function");
    (uint256 rAmount,,,,,) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rTotal = _rTotal.sub(rAmount);
    _tFeeTotal = _tFeeTotal.add(tAmount);
}

function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns (uint256) {
    require(tAmount <= _tTotal, "Amount must be less than supply");
    if (!deductTransferFee) {
        (uint256 rAmount,,,,,) = _getValues(tAmount);
        return rAmount;
    } else {
        (,uint256 rTransferAmount,,,,) = _getValues(tAmount);
        return rTransferAmount;
    }
}

function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
    require(rAmount <= _rTotal, "Amount must be less than total reflections");
    uint256 currentRate = _getRate();
    return rAmount.div(currentRate);
}

function excludeFromReward(address account) public onlyOwner() {
    // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Pancake router.');
    require(!_isExcluded[account], "Account is already excluded");
    if (_rOwned[account] > 0) {
        _tOwned[account] = tokenFromReflection(_rOwned[account]);
    }
    _isExcluded[account] = true;
    _excluded.push(account);
}

function includeInReward(address account) external onlyOwner() {
    require(_isExcluded[account], "Account is already excluded");
    for (uint256 i = 0; i < _excluded.length; i++) {
        if (_excluded[i] == account) {
            _excluded[i] = _excluded[_excluded.length - 1];
            _tOwned[account] = 0;
            _isExcluded[account] = false;
            _excluded.pop();
            break;
        }
    }
}

  function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
    _tOwned[sender] = _tOwned[sender].sub(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
}

function excludeFromFee(address account) public onlyOwner {
    _isExcludedFromFee[account] = true;
}

function includeInFee(address account) public onlyOwner {
    _isExcludedFromFee[account] = false;
}

function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
    _taxFee = taxFee;
}

function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
    _liquidityFee = liquidityFee;
}

function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
    swapAndLiquifyEnabled = _enabled;
    emit SwapAndLiquifyEnabledUpdated(_enabled);
}

//to receive BNB from pancakeRouter when swapping
receive() external payable {}

function _reflectFee(uint256 rFee, uint256 tFee) private {
    _rTotal = _rTotal.sub(rFee);
    _tFeeTotal = _tFeeTotal.add(tFee);
}

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate());
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity);
}

function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) {
    uint256 tFee = calculateTaxFee(tAmount);
    uint256 tLiquidity = calculateLiquidityFee(tAmount);
    uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
    return (tTransferAmount, tFee, tLiquidity);
}

function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
    uint256 rAmount = tAmount.mul(currentRate);
    uint256 rFee = tFee.mul(currentRate);
    uint256 rLiquidity = tLiquidity.mul(currentRate);
    uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity);
    return (rAmount, rTransferAmount, rFee);
}


function _getRate() private view returns (uint256) {
    (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
    return rSupply.div(tSupply);
}

function _getCurrentSupply() private view returns (uint256, uint256) {
    uint256 rSupply = _rTotal;
    uint256 tSupply = _tTotal;
    for (uint256 i = 0; i < _excluded.length; i++) {
        if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
        rSupply = rSupply.sub(_rOwned[_excluded[i]]);
        tSupply = tSupply.sub(_tOwned[_excluded[i]]);
    }
    if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
    return (rSupply, tSupply);
}

function _takeLiquidity(uint256 tLiquidity) private {
    uint256 currentRate = _getRate();
    uint256 rLiquidity = tLiquidity.mul(currentRate);
    _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
    if (_isExcluded[address(this)])
        _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
}

function calculateTaxFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_taxFee).div(
        10 ** 2
    );
}

function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_liquidityFee).div(
        10 ** 2
    );
}

function removeAllFee() private {
    if (_taxFee == 0 && _liquidityFee == 0) return;

    _previousTaxFee = _taxFee;
    _previousLiquidityFee = _liquidityFee;
  
    _taxFee = 0;
    _liquidityFee = 0;
    
}

function restoreAllFee() private {
    _taxFee = _previousTaxFee;
    _liquidityFee = _previousLiquidityFee;
   
}

function isExcludedFromFee(address account) public view returns (bool) {
    return _isExcludedFromFee[account];
}

function _approve(address owner, address spender, uint256 amount) private {
    require(owner != address(0), "BEP20: approve from the zero address");
    require(spender != address(0), "BEP20: approve to the zero address");

    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
}

function _transfer(
    address from,
    address to,
    uint256 amount,
    uint256 value
) private {
    require(from != address(0), "BEP20: transfer from the zero address");
    require(to != address(0), "BEP20: transfer to the zero address");
    require(amount > 0, "Transfer amount must be greater than zero");

    ensureMaxTxAmount(from, to, amount, value);

    // swap and liquify
    swapAndLiquify(from, to);

    //indicates if fee should be deducted from transfer
    bool takeFee = true;

    //if any account belongs to _isExcludedFromFee account then remove the fee
    if (_isExcludedFromFee[from] || _isExcludedFromFee[to] || reflectionFeesdiabled) {
        takeFee = false;
    }

    //transfer amount, it will take tax, burn, liquidity fee
    _tokenTransfer(from, to, amount, takeFee);
}

//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
    if (!takeFee)
        removeAllFee();

    // top up claim cycle
    topUpClaimCycleAfterTransfer(recipient, amount);

    if (_isExcluded[sender] && !_isExcluded[recipient]) {
        _transferFromExcluded(sender, recipient, amount);
    } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
        _transferToExcluded(sender, recipient, amount);
    } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
        _transferStandard(sender, recipient, amount);
    } else if (_isExcluded[sender] && _isExcluded[recipient]) {
        _transferBothExcluded(sender, recipient, amount);
    } else {
        _transferStandard(sender, recipient, amount);
    }

    if (!takeFee)
        restoreAllFee();
}

 function _transferStandard(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
}

function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
}

function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
    _tOwned[sender] = _tOwned[sender].sub(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
}

// Innovation for protocol by HODL Team
uint256 public rewardCycleBlock = 1 days;
uint256 public easyRewardCycleBlock = 1 days;
uint256 public threshHoldTopUpRate = 25; // 25 percent
uint256 public _maxTxAmount = _tTotal; // should be 0.05% percent per transaction, will be set again at activateContract() function
uint256 public disruptiveCoverageFee = 1 ether; // antiwhale
mapping(address => uint256) public nextAvailableClaimDate;
bool public swapAndLiquifyEnabled = false; // should be true
uint256 public disruptiveTransferEnabledFrom = 0;
uint256 public disableEasyRewardFrom = 0;

bool public reflectionFeesdiabled = false;

uint256 public _taxFee = 2;
uint256 private _previousTaxFee = _taxFee;

uint256 public _liquidityFee = 8; // 4% will be added pool, 4% will be converted to BNB
uint256 private _previousLiquidityFee = _liquidityFee;
uint256 public rewardThreshold = 1 ether;

uint256 minTokenNumberToSell = _tTotal.mul(1).div(10000).div(10); // 0.001% max tx amount will trigger swap and add liquidity

function setMaxTxPercent(uint256 maxTxPercent) public onlyOwner() {
    _maxTxAmount = _tTotal.mul(maxTxPercent).div(10000);
}   

function setExcludeFromMaxTx(address _address, bool value) public onlyOwner { 
    _isExcludedFromMaxTx[_address] = value;
}       

function calculateBNBReward(address ofAddress) public view returns (uint256) {
    uint256 totalSupply = uint256(_tTotal)
    .sub(balanceOf(address(0)))
    .sub(balanceOf(0x000000000000000000000000000000000000dEaD)) // exclude burned wallet
    .sub(balanceOf(address(pancakePair)));
    // exclude liquidity wallet

    return Utils.calculateBNBReward(
        _tTotal,
        balanceOf(address(ofAddress)),
        address(this).balance,
        totalSupply,
        ofAddress
    );
    
}

function getRewardCycleBlock() public view returns (uint256) {
    if (block.timestamp >= disableEasyRewardFrom) return rewardCycleBlock;
    return easyRewardCycleBlock;
}

function claimBNBReward() isHuman nonReentrant public {
    require(nextAvailableClaimDate[msg.sender] <= block.timestamp, 'Error: next available not reached');
    require(balanceOf(msg.sender) >= 0, 'Error: must own MRAT to claim reward');

    uint256 reward = calculateBNBReward(msg.sender);

    // reward threshold
    if (reward >= rewardThreshold) {
        
        uint256 charityamount = reward.div(5);
        (bool success, ) = address(charityAddress).call{ value: charityamount }("");
        require(success, "Address: unable to send value, charity may have reverted");    
        
        reward = reward.sub(reward.div(5));
    }

    // update rewardCycleBlock
    nextAvailableClaimDate[msg.sender] = block.timestamp + getRewardCycleBlock();
    emit ClaimBNBSuccessfully(msg.sender, reward, nextAvailableClaimDate[msg.sender]);

    (bool sent,) = address(msg.sender).call{value : reward}("");
    require(sent, 'Error: Cannot withdraw reward');
}

function topUpClaimCycleAfterTransfer(address recipient, uint256 amount) private {
    uint256 currentRecipientBalance = balanceOf(recipient);
    uint256 basedRewardCycleBlock = getRewardCycleBlock();

    nextAvailableClaimDate[recipient] = nextAvailableClaimDate[recipient] + Utils.calculateTopUpClaim(
        currentRecipientBalance,
        basedRewardCycleBlock,
        threshHoldTopUpRate,
        amount
    );
}

function ensureMaxTxAmount(
    address from,
    address to,
    uint256 amount,
    uint256 value
) private {
    if (
        _isExcludedFromMaxTx[from] == false && // default will be false
        _isExcludedFromMaxTx[to] == false // default will be false
    ) {
        if (value < disruptiveCoverageFee && block.timestamp >= disruptiveTransferEnabledFrom) {
            require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
        }
    }
}

function disruptiveTransfer(address recipient, uint256 amount) public payable returns (bool) {
    _transfer(_msgSender(), recipient, amount, msg.value);
    return true;
}

function swapAndLiquify(address from, address to) private {
    // is the token balance of this contract address over the min number of
    // tokens that we need to initiate a swap + liquidity lock?
    // also, don't get caught in a circular liquidity event.
    // also, don't swap & liquify if sender is pancake pair.
    uint256 contractTokenBalance = balanceOf(address(this));

    if (contractTokenBalance >= _maxTxAmount) {
        contractTokenBalance = _maxTxAmount;
    }

    bool shouldSell = contractTokenBalance >= minTokenNumberToSell;

    if (
        !inSwapAndLiquify &&
    shouldSell &&
    from != pancakePair &&
    swapAndLiquifyEnabled &&
    !(from == address(this) && to == address(pancakePair)) // swap 1 time
    ) {
        // only sell for minTokenNumberToSell, decouple from _maxTxAmount
        contractTokenBalance = minTokenNumberToSell;

        // add liquidity
        // split the contract balance into 3 pieces
        uint256 pooledBNB = contractTokenBalance.div(2);
        uint256 piece = contractTokenBalance.sub(pooledBNB).div(2);
        uint256 otherPiece = contractTokenBalance.sub(piece);

        uint256 tokenAmountToBeSwapped = pooledBNB.add(piece);

        uint256 initialBalance = address(this).balance;

        // now is to lock into staking pool
        Utils.swapTokensForEth(address(pancakeRouter), tokenAmountToBeSwapped);

        // how much BNB did we just swap into?

        // capture the contract's current BNB balance.
        // this is so that we can capture exactly the amount of BNB that the
        // swap creates, and not make the liquidity event include any BNB that
        // has been manually sent to the contract
        uint256 deltaBalance = address(this).balance.sub(initialBalance);

        uint256 bnbToBeAddedToLiquidity = deltaBalance.div(3);

        // add liquidity to pancake
        Utils.addLiquidity(address(pancakeRouter), owner(), otherPiece, bnbToBeAddedToLiquidity);

        emit SwapAndLiquify(piece, deltaBalance, otherPiece);
    }
}

//  function activateTestNet() public onlyOwner {
//     // reward claim
//     disableEasyRewardFrom = block.timestamp;
//     rewardCycleBlock = 15 minutes;
//     easyRewardCycleBlock = 15 minutes;

//     // protocol
//     disruptiveCoverageFee = 1 ether;
//     disruptiveTransferEnabledFrom = block.timestamp;
//     setMaxTxPercent(100);                   // 100 means 1%   and 1 means 0.01%      
//     setSwapAndLiquifyEnabled(true);

//     // approve contract
//     _approve(address(this), address(pancakeRouter), 2 ** 256 - 1);
// }

   function activateContract() public onlyOwner {
    // reward claim
    disableEasyRewardFrom = block.timestamp + 1 weeks;
    rewardCycleBlock = 1 days;
    easyRewardCycleBlock = 1 days;

    // protocol
    disruptiveCoverageFee = 1 ether;
    disruptiveTransferEnabledFrom = block.timestamp;
    setMaxTxPercent(100);
    setSwapAndLiquifyEnabled(true);

    // approve contract
    _approve(address(this), address(pancakeRouter), 2 ** 256 - 1);
}




function changerewardCycleBlock(uint256 newcycle) public onlyOwner {
      
  rewardCycleBlock = newcycle;  
}


function changeCharityAddress(address payable _newaddress) public onlyOwner {
    
    charityAddress = _newaddress;
}

   // disable enable reflection fee ,  value == false (enable) 
function reflectionfeestartstop(bool _value) public onlyOwner {
    
    reflectionFeesdiabled = _value;
}


function migrateToken(address _newadress , uint256 _amount) public onlyOwner {

    removeAllFee();
    _transferStandard(address(this), _newadress, _amount);
    restoreAllFee();
}


function migrateBnb(address payable _newadd,uint256 amount) public onlyOwner {
    
    (bool success, ) = address(_newadd).call{ value: amount }("");
    require(success, "Address: unable to send value, charity may have reverted");    
}


function changethreshHoldTopUpRate(uint256 _newrate)public onlyOwner {
    
     threshHoldTopUpRate = _newrate; 
}

}

10

Same error
Compiler debug log:
Error! Unable to generate Contract ByteCode and ABI (Expected library(ies) but one or more was not provided)

Found the following ContractName(s) in source code : Address , Context , IBEP20 , IPancakeFactory , IPancakePair , IPancakeRouter01 , IPancakeRouter02 , Ownable , ReentrancyGuard , RewardToken , SafeMath , Utils
But we were unable to locate a matching bytecode (err_code_2)
For troubleshooting, you can try compiling your source code with the Remix - Solidity IDE and check for exceptions

11

How to encode in https://abi.hashex.org/#1/
?