Meet.jitsi existing room stopped working, new one are ok


since this morning all existing meet.jitsi rooms are unusable:
-other users are shown as muted for every participant
-while hearing them for a minute they are all shown as “lost” after a while
i tried to create a new channel in rocketchat and the resulting meet.jitsi room is working

how can i generate new meet.jitsi rooms for my existing channels?

Server Setup Information

  • Version of Rocket.Chat Server: 2.4.9
  • Operating System: Ubuntu 18.04
  • Deployment Method: tar
  • Number of Running Instances: 2
  • DB Replicaset Oplog: mongodb://user:pass@server1name:27017,server2name:27017/local?authSource=admin&replicaSet=rsname"
  • NodeJS Version: v8.17.0
  • MongoDB Version: 4.0.16
  • Proxy: nginx
  • Firewalls involved: Palo Alto

Any additional Information