JVB 2018-04-13 13:21:12.302 SEVERE:  org.jitsi.meet.ComponentMain.call().278
java.net.ConnectException: Connection refused (Connection refused),
Connection refused (Connection refused)
That's because prosody is not available.
Your prosody log suggests it should be :
>> Apr 12 22:31:59 socket warn server.lua, [::1]:5347: Cannot assign
>> Apr 12 22:31:59 portmanager error Failed to open server port 5347 on
>> Cannot assign requested address
>> Apr 12 22:31:59 portmanager info Activated service 'component' on
You are running prosody and JVB on the same instance aren't you??
Could be an IP6 issue perhaps. Prosody listening on 127.0.0.1 and JVB
trying to connect to ::1
Maybe add a "127.0.0.1 localhost4" entry to your /etc/hosts file and then
change any connections to/from localhost to localhost4.
Or disable IP6! Probably quicker.
But, you should test it with checking the port is listening correctly. Use
netstat or ss :
netstat -anp | grep 5347
And if it is listening on 127.0.0.1, can you connect to it with nc.
nc 127.0.0.1 5347
(Commands are from memory, may need a little work)