Jitsi Disconnects when more than 1 user Joins

I´ve installed a Jitsi Meet on Ubuntu 18.04

I followed the installation by Jitsi and its now working fine on our server.
We have one issue. When I start the meeting it works perfectly fine for me. But as soon as i invite another attendee, Jitsi disconnects and reconnects. As soon as the reconnection is done, it disconnects again.

Please help!

The meeting is not started when there is only one participant. Probably you have an issue related with JVB. It may be failed or it is not accessible through UDP/10000

I had a check on the firewall, everything looked ok.
I made a restart on the video:

systemctl restart prosody
systemctl restart jicofo
systemctl restart jitsi-videobridge2
systemctl restart nginx

Now its working just fine!

If the same issue occurs again, this means that there is a resource issue