How to lock liquidity on pancakeswap LP

I just deployed my token and created a pool on Pancakeswap. I am getting the following warning in poocoin chart: "An unlocked wallet is holding 100.00% of the LP". I think I need lock the liquidity LP tokens. How can I lock it cheaply and securely?

You can use Cedilla Locker. It's the cheapest on the market right now. Has verified and audited contract. It's simple to use.