There may be a mismatch between the token that _stakingContract is in charge of, and the actual token used by the LiquidityReserve. This code should check that they are in fact the same
There is 1 instance of this issue:
https://github.com/code-423n4/2022-06-yieldy/blob/524f3b83522125fb7d4677fa7a7e5ba5a2c0fe67/src/contracts/LiquidityReserve.sol#L57-L72
