Errors/Chain errors
AlreadyStored
The object or state already exists; treat the goal as met or pick a different target
The call data supplied for storage is already stored on-chain for this multisig operation. Check whether the call bytes were previously stored for this call hash before submitting them again.
Declared by the Multisig pallet; it classifies to the semantic code already_exists.
Remediation
The object or state already exists; treat the goal as met or pick a different target
The same explanation is available in the terminal: btcli explain AlreadyStored.