Oracle® Database 11g / 12c / 18c error codes ORA-12495: cannot disable an enabled level, category, or release category

ORA-12495: cannot disable an enabled level, category, or release category

Oracle Error Code: ORA-12495

Cause: You attempted to disable a level, category, or release category that had previously been enabled. An enabled label definition may be exist in some database label, so cannot be disabled.

Action: If the label definition is no longer valid, change its name to one that identifies it as invalid. When any labels are converted to character strings, the new label definition will be used.