Oracle Solution for Error ora-13918

Solution for Oracle Error ORA-13918

ORA-13918: Updating system alert with reason_id string failed; previous alert not found

What triggered the Error:

System Error: An attempt to update a system alert failed. The alert was improperly cleared from WRI$_ALERT_OUTSTANDING.

What should we do to fix it:

Do not delete from WRI$_ALERT_OUTSTANDING. If this condition repeats, please contact Oracle Support.