Errors/Chain errors
ContractReverted
A chain-side invariant failed; nothing to fix client-side — report it if it persists
The contract ran to completion but returned with the REVERT flag set, rolling back its state changes; only extrinsics surface this as an error. Dry-run the call via RPC and decode the returned output data for the contract's error value.
Declared by the Contracts 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 ContractReverted.