Oracle : Ошибка ORA-13918

13918, 0000, "Updating system alert with reason_id %s failed; previous alert not found"
*Cause: System Error: An attempt to update a system alert failed.
The alert was improperly cleared from WRI$_ALERT_OUTSTANDING.
*Action: Do not delete from WRI$_ALERT_OUTSTANDING.
If this condition repeats, please contact Oracle Support.

Попробовать перевести

Поискать эту ошибку на форуме