lost quorum

Hello, After network outage one of clusters lost quorom. There are active VMs running, we do not want to cause any downtime. How can it be fixed? The otput of pvecm status is: root@OurNode06:~# pvecm status perl: warning: Setting locale failed. perl: warning: Please check that your locale...

Not sure what happened when I updated things a while back but I lost 5 of the 9 nodes... nothing special on any of them.. I managed to get the vm's live again from replicated data on other nodes and they are all working... I let it be for a couple months and have not looked at it since...