stake() function: The provided stake function lacks checks to prevent a lender from staking multiple NFTs in the same Ajna pool. The function allows any owned position NFT to be staked without considering whether the lender has already staked in the pool. This potentially opens up the system to an abuse where a lender stakes multiple NFTs for the same liquidity position.

Lines of code Vulnerability details Impact The current stake function lacks checks to prevent a lender from staking multiple NFTs in the same Ajna pool. This could lead to an abuse of the system where a lender stakes multiple NFTs for the same liquidity position, potentially earning more rewards...