Common DeFi convention
error TRANSFER_FAILED()A transaction that reverts with the raw data 0x3f4ab80e hit the custom error TRANSFER_FAILED, defined in Common DeFi convention. The explorer shows the hex because it does not have the contract's ABI to translate it.
A custom-error form of the classic transfer failure: a token the contract tried to move refused the transfer.
Check the token for restrictions, fees on transfer, or a paused state, and verify approvals and balances.
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Every selector on this page was computed as the first 4 bytes of keccak256 of the signature shown. A selector identifies a signature exactly; on rare occasions two different signatures share one, so the transaction decoder is always the more precise answer.