Uniswap Permit2

0xf96fb071: InsufficientAllowance

error InsufficientAllowance(uint256)

What it means

A transaction that reverts with the raw data 0xf96fb071 hit the custom error InsufficientAllowance, defined in Uniswap Permit2. The explorer shows the hex because it does not have the contract's ABI to translate it.

The Permit2 allowance for this token is smaller than the amount the trade needs.

How to fix it

Approve the token again for at least the trade amount, then retry.

More Uniswap Permit2 errors

0xd81b2f2eAllowanceExpired

0xcd21db4fSignatureExpired

0x815e1d64InvalidSigner

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.