Errors/Chain errors

FeeOverflow

A chain-side invariant failed; nothing to fix client-side — report it if it persists

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Fee arithmetic overflowed, either multiplying the fee per gas by gas_limit or converting the EVM fee into Substrate balance decimals. Check for absurdly large gas_limit or fee-per-gas values in the transaction.

Declared by the EVM pallet; it classifies to the semantic code internal.

Remediation

A chain-side invariant failed; nothing to fix client-side — report it if it persists

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