What it means
A transaction that reverts with the raw data 0x2c5211c6 hit the custom error InvalidAmount, defined in Common DeFi convention. The explorer shows the hex because it does not have the contract's ABI to translate it.
The amount failed a contract rule: zero where nonzero is required, below a minimum, above a maximum, or wrong granularity.
How to fix it
Check the dapp for minimum and maximum limits on the action, and retry inside them.