PreLogExists

Check the argument values against the operation schema

An ethereum.transact extrinsic was submitted in a block that already carries a pre-log digest, meaning an Ethereum transaction is being injected by other means. Check the block's digest for a pre-runtime Ethereum log; transact is not allowed alongside it.

Declared by the Ethereum pallet; it classifies to the semantic code invalid_argument.

Remediation

Check the argument values against the operation schema

The same explanation is available in the terminal: btcli explain PreLogExists.