vAPP VCOPS 5.7 - "The alert queue is full"

Hi,

I need help with VCOPS.

I have a warning in my VCOPS: "Cannot send an outbound alert. The Alert queue is full. Consider desabling or improving the performance of active outbound alert instances."

I turned off all alerts, I rebooted both VMs and I searched on Google I find no way to clear the message queue.

I think the message queue is corrupt.. how empty or repare the message queue?

Regard.