Video and Audio not working after connecting second device

Hi, I am trying to run Jitsi on my Ubuntu 18.04 VPS, but when a new participant joins the room all of the video and audio of both or more will be disapeared and Jitsi shows that they are also muted wrongfully!
How can I fix it?

Jicofo.log

    Jicofo 2020-08-24 17:21:31.917 WARNING: [240] org.jivesoftware.smack.AbstractXMPPConnection.callConnectionClosedOnErrorListener($
javax.net.ssl.SSLException: Received fatal alert: protocol_version
        at com.ibm.jsse2.k.a(k.java:1)
        at com.ibm.jsse2.k.a(k.java:14)
        at com.ibm.jsse2.av.b(av.java:761)
        at com.ibm.jsse2.av.a(av.java:582)
        at com.ibm.jsse2.av.i(av.java:136)
        at com.ibm.jsse2.av.a(av.java:1001)
        at com.ibm.jsse2.av.startHandshake(av.java:991)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection.proceedTLSReceived(XMPPTCPConnection.java:810)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection.access$1200(XMPPTCPConnection.java:151)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.parsePackets(XMPPTCPConnection.java:1071)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.access$300(XMPPTCPConnection.java:1000)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader$1.run(XMPPTCPConnection.java:1016)
        at java.lang.Thread.run(Thread.java:820)

JVB.log

 [hostname=localhost id=shard] MucClient$1.connectionClosedOnError#314: Closed on error:
javax.net.ssl.SSLException: Received fatal alert: protocol_version
        at com.ibm.jsse2.k.a(k.java:1)
        at com.ibm.jsse2.k.a(k.java:14)
        at com.ibm.jsse2.av.b(av.java:761)
        at com.ibm.jsse2.av.a(av.java:582)
        at com.ibm.jsse2.av.i(av.java:136)
        at com.ibm.jsse2.av.a(av.java:1001)
        at com.ibm.jsse2.av.startHandshake(av.java:991)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection.proceedTLSReceived(XMPPTCPConnection.java:810)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection.access$1200(XMPPTCPConnection.java:151)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.parsePackets(XMPPTCPConnection.java:1071)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.access$300(XMPPTCPConnection.java:1000)
        at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader$1.run(XMPPTCPConnection.java:1016)
        at java.lang.Thread.run(Thread.java:820)
2020-08-24 17:27:55.327 INFO: [32] Videobridge.createConference#255: create_conf, id=e6f1028d36d69000 gid=-1 logging=false
2020-08-24 17:27:55.357 INFO: [32] AbstractHealthCheckService.run#182: Performed a successful health check in PT0.03S. Sticky fa$

@damencho Please Help Me

The error is from com.ibm.jsse2. IBM Java.
However, Jitsi is intended to use openjdk - 8 -jre.

This is the problem related to VideoBridge rather than audio-video. Video bridge cant connect with
to Jicofo. due to SSL protocal problem adopted due to IBM Java.

You need to start from first to prevent IBM Java to be installed on Jitsi Meet instance (main).
Install openjdk separately.

apt install openjdk-8-jre
apt install --no-install-recommends jitsi-meet

See this: