Can't verify SC

Trying to verify this SC, but it doesn’t work, no matter what… :frowning: Need some help please

Flattened Source: https://gist.github.com/nigeon/56750afd8a3ae0b9037dad63016c27c3

Compiled using hardhat with:
version: “0.7.4”,
settings: {
optimizer: {
runs: 99999,
enabled: true,
},
},

Constructor params (string tokenName, string symbol, address userAddress, uint256 tokenSupply): “verifiable”, “VERIFY”, “0xbb73137b620cffde1b3971a0c9023b480c851b70”,
10000000

This was deployed using ethersjs with:
const tokenFactory = new ethers.ContractFactory(ERC20ABI, ERC20Byte, signer)
await tokenFactory.deploy(
values.tokenName,
values.symbol,
ethers.utils.getAddress(userAddress),
tokenSupply
)

Thanks!