On Firefox I see the following error in the console
"Firefox can’t establish a connection to the server at wss://eu.appwarp.shephertz.com:12347/."
I copied paste the url https://eu.appwarp.shephertz.com:12347/
to the browser and I got a time out.
Apparently, the server is down, but, why doesn't your load balance send the request to another server?
My web users can not longer connect to your server, but, surprisingly, my mobile users can.
I hope this is something that you will fix it soon.