| ERROR | cannot drop QUEUE_TABLE, some queues in string have not been dropped |
| CAUSE | A queue exists in the queue table which has not been dropped. All queues need to be dropped first. |
| ACTION | Drop all queues belonging to this queue table using the drop_queue() command. Be sure to stop the queues appropriately before dropping them. Alternately, use the force option in drop_queuetable. |