InvalidDerivedAccountId

Deriving the pure proxy account id from the provided entropy failed to decode into a valid account. Check the spawner, proxy_type, and index arguments used with create_pure (or the equivalent lookup when destroying one).

Declared by the Proxy 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 InvalidDerivedAccountId.