Jitsi bug when joining room

When I am trying to join room, I found the following error in jicofo log:

Jicofo 2020-10-14 11:44:49.038 WARNING: [46] org.jitsi.xmpp.component.ComponentBase.log() PROCESSING TIME LIMIT EXCEEDED - it took 15013ms to process:
Jicofo 2020-10-14 11:44:49.039 WARNING: [46] org.jitsi.jicofo.xmpp.FocusComponent.processIQ() (serving component ‘Jitsi Meet Focus’) Unexpected exception while processing IQ stanza:
net.java.sip.communicator.service.protocol.OperationFailedException: Failed to join the room
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.joinAs(ChatRoomImpl.java:298)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.join(ChatRoomImpl.java:209)
at org.jitsi.jicofo.JitsiMeetConferenceImpl.joinTheRoom(JitsiMeetConferenceImpl.java:581)
at org.jitsi.jicofo.JitsiMeetConferenceImpl.start(JitsiMeetConferenceImpl.java:404)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:477)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:426)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:401)
at org.jitsi.jicofo.xmpp.FocusComponent.handleConferenceIq(FocusComponent.java:417)
at org.jitsi.jicofo.xmpp.FocusComponent.handleIQSetImpl(FocusComponent.java:254)
at org.jitsi.xmpp.component.ComponentBase.handleIQSet(ComponentBase.java:362)
at org.xmpp.component.AbstractComponent.processIQRequest(AbstractComponent.java:515)
at org.xmpp.component.AbstractComponent.processIQ(AbstractComponent.java:289)
at org.xmpp.component.AbstractComponent.processQueuedPacket(AbstractComponent.java:239)
at org.xmpp.component.AbstractComponent.access$100(AbstractComponent.java:81)
at org.xmpp.component.AbstractComponent$PacketProcessor.run(AbstractComponent.java:1051)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.jivesoftware.smack.SmackException$NoResponseException: No response received within reply timeout. Timeout was 15000ms (~15s). Waited for response using: AndFilter: (StanzaTypeFilter: Presence, OrFilter: (AndFilter: (FromMatchesFilter (ignoreResourcepart): room6@conference.jitsi.karmac.com, MUCUserStatusCodeFilter: status=110), AndFilter: (FromMatchesFilter (full): room6@conference.jitsi.karmac.com/focus, StanzaIdFilter: id=BLRy0-15813, PresenceTypeFilter: type=error))).
at org.jivesoftware.smack.SmackException$NoResponseException.newWith(SmackException.java:111)
at org.jivesoftware.smack.SmackException$NoResponseException.newWith(SmackException.java:98)
at org.jivesoftware.smack.StanzaCollector.nextResultOrThrow(StanzaCollector.java:260)
at org.jivesoftware.smackx.muc.MultiUserChat.enter(MultiUserChat.java:355)
at org.jivesoftware.smackx.muc.MultiUserChat.createOrJoin(MultiUserChat.java:498)
at org.jivesoftware.smackx.muc.MultiUserChat.createOrJoin(MultiUserChat.java:444)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.joinAs(ChatRoomImpl.java:240)
… 17 more

Check your prosody logs, jicofo did not receive response for some reason.

Hello can you help me solve this error:

Jicofo 2020-10-15 11:43:24.985 INFO: [28] org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Member room6@conference.jitsi.karmac.com/8073089e joined.
Jicofo 2020-10-15 11:43:24.985 WARNING: [48] org.jitsi.xmpp.component.ComponentBase.log() PROCESSING TIME LIMIT EXCEEDED - it took 103ms to process:
Jicofo 2020-10-15 11:43:24.988 WARNING: [48] org.jitsi.jicofo.xmpp.FocusComponent.processIQ() (serving component ‘Jitsi Meet Focus’) Unexpected exception while processing IQ stanza:
net.java.sip.communicator.service.protocol.OperationFailedException: Failed to join the room
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.joinAs(ChatRoomImpl.java:298)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.join(ChatRoomImpl.java:209)
at org.jitsi.jicofo.JitsiMeetConferenceImpl.joinTheRoom(JitsiMeetConferenceImpl.java:581)
at org.jitsi.jicofo.JitsiMeetConferenceImpl.start(JitsiMeetConferenceImpl.java:404)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:477)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:426)
at org.jitsi.jicofo.FocusManager.conferenceRequest(FocusManager.java:401)
at org.jitsi.jicofo.xmpp.FocusComponent.handleConferenceIq(FocusComponent.java:417)
at org.jitsi.jicofo.xmpp.FocusComponent.handleIQSetImpl(FocusComponent.java:254)
at org.jitsi.xmpp.component.ComponentBase.handleIQSet(ComponentBase.java:362)
at org.xmpp.component.AbstractComponent.processIQRequest(AbstractComponent.java:515)
at org.xmpp.component.AbstractComponent.processIQ(AbstractComponent.java:289)
at org.xmpp.component.AbstractComponent.processQueuedPacket(AbstractComponent.java:239)
at org.xmpp.component.AbstractComponent.access$100(AbstractComponent.java:81)
at org.xmpp.component.AbstractComponent$PacketProcessor.run(AbstractComponent.java:1051)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.jivesoftware.smack.XMPPException$XMPPErrorException: XMPP error reply received from room6@conference.jitsi.karmac.com: XMPPError: forbidden - auth
at org.jivesoftware.smack.XMPPException$XMPPErrorException.ifHasErrorThenThrow(XMPPException.java:132)
at org.jivesoftware.smack.StanzaCollector.nextResultOrThrow(StanzaCollector.java:263)
at org.jivesoftware.smack.StanzaCollector.nextResultOrThrow(StanzaCollector.java:214)
at org.jivesoftware.smackx.muc.MultiUserChat.getConfigurationForm(MultiUserChat.java:781)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.joinAs(ChatRoomImpl.java:244)
… 17 more
Jicofo 2020-10-15 11:43:25.006 SEVERE: [28] org.jivesoftware.smack.AbstractXMPPConnection.run() Exception in packet listener
java.lang.NullPointerException
at org.jitsi.jicofo.JitsiMeetConferenceImpl.checkMinParticipants(JitsiMeetConferenceImpl.java:1144)
at org.jitsi.jicofo.JitsiMeetConferenceImpl.onMemberJoined(JitsiMeetConferenceImpl.java:693)
at org.jitsi.jicofo.ChatRoomRoleAndPresence.memberPresenceChanged(ChatRoomRoleAndPresence.java:165)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.lambda$notifyMemberJoined$1(ChatRoomImpl.java:917)
at java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:895)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.notifyMemberJoined(ChatRoomImpl.java:917)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.processOtherPresence(ChatRoomImpl.java:1212)
at org.jitsi.impl.protocol.xmpp.ChatRoomImpl.processPresence(ChatRoomImpl.java:1261)
at org.jivesoftware.smackx.muc.MultiUserChat$3.processStanza(MultiUserChat.java:251)
at org.jivesoftware.smack.AbstractXMPPConnection$6.run(AbstractXMPPConnection.java:1263)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

Do you see errors in prosody log?

no there are no errors