Errors/Chain errors
DepositCannotBeWithdrawn
Check the argument values against the operation schema
The creator called withdraw but holds nothing above the initial deposit, which stays locked until the crowdloan is dissolved. Compare the creator's Contributions entry with the deposit field of the Crowdloans entry.
Declared by the Crowdloan 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 DepositCannotBeWithdrawn.