Oracle® Database 11g / 12c / 18c error codes ORA-12493: invalid MLS binary label

ORA-12493: invalid MLS binary label

Oracle Error Code: ORA-12493

Cause: The MLS binary label contained an invalid value, was not the correct size, or contained a level, category, or release category that was not enabled.

Action: Check the DBA_MLS_LABELS view for the valid MLS labels.