ORA-28462
invalid object metadata
Cause
The metadata of an object from the Transparent Data Encryption (TDE) keystore was incorrectly formatted.
Action
Check the trace file to find the object ID and to determine if the object was created on the database in the FILE wallet or an external keystore (OKV/KMS), imported from another database or imported from an external keystore (OKV). Contact Oracle Support for further assistance.