Errors/Chain errors
DecodingFailed
Check the argument values against the operation schema
Input bytes passed to a contract API host function could not be SCALE-decoded into the expected type. Check the encoding of the call's input data or the argument bytes the contract passes to the runtime API.
Declared by the Contracts 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 DecodingFailed.