Recently we had a case when network infrastructure went down, and only after some time we fixed it. Observium noticed it and everything was OK. But in meantime of fixing it - Observium started to flood with alerts - this may be the correct case. 

But after we repaired the network - and everything was OK, we still had a flood of old errors and it continued about an hour or so.

I tried to disable email alerts through config.php, supress all alerts through WEB interface - but nothing helped.

So is there any manual way to stop the Alerting queue ?

Thanks