The code should validate treasury address is not address(0) when setting Treasury in [lending pool](https://github.com/code-423n4/2024-01-init-capital-invitational/blob/a01c4de620be98f9e57a60cf6a82d4feaec54f58/contracts/lendingpool/LendingPool.sol#L243).
Tn fact by default the treasury address is not set, and accrue interest would revert when minting interest to treasury address(0).
https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/blob/f6f59bf10f40e06111c66e2fadf652a47919d2f6/contracts/token/ERC20/ERC20Upgradeable.sol#L251
The reward token is never removed, but the problem is that the master chef admin can remove extra reward or update extra reward.
Suppose the reward token list has [MOE, and WETH], WETH is the extra reward, then the extra reward changes to [JOE], then WETH token data is considered outdated.
