Oracle : Ошибка ORA-32816

"foreign queue %s is referenced by a subscriber or schedule"
*Cause: An attempt was made to unregister a foreign queue currently
referenced by one or more subscribers or propagation schedules.
*Action: Remove all subscribers and propagation schedules using this
foreign queue and retry the operation.

Попробовать перевести

Поискать эту ошибку на форуме