<2021-01-06 16:40:34:358> <SEVERE  > <urn:xmpp:mix:pam:2-proc-0 > WorkerThread.run()            : tigase.server.xmppsession.SessionManager$ProcessorWorkerThread,(urn:xmpp:mix:pam:2-proc-0) Exception during packet processing: from=s2s@ip-10-0-17-209.us-west-2.compute.internal, to=sess-man@ip-10-0-17-209.us-west-2.compute.internal, DATA=<iq xmlns="jabber:client" id="BADDDFDA-0D31-4B01-8816-7DB99ECC5592" to="…@tigase.im" from="n…o@conference.….org" type="error"><join xmlns="urn:xmpp:mix:core:1"><subscribe node="urn:xmpp:mix:nodes:messages"/><subscribe node="urn:xmpp:mix:nodes:participants"/><subscribe node="urn:xmpp:mix:nodes:info"/><subscribe node="urn:xmpp:avatar:metadata"/><nick>CData size: 6</nick></join><error code="503" type="cancel"><service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" xml:lang="en">CData size: 56</text></error></iq>, SIZE=629, XMLNS=jabber:client, PRIORITY=NORMAL, PERMISSION=NONE, TYPE=error, STABLE_ID=467ea293-7b47-4291-86da-a76fb659630d
java.lang.NullPointerException
	at tigase.xmpp.impl.MIXProcessor.process(MIXProcessor.java:180)
	at tigase.server.xmppsession.SessionManager$ProcessorWorkerThread.process(SessionManager.java:2646)
	at tigase.util.processing.WorkerThread.run(WorkerThread.java:67)

<iq xmlns="jabber:client" id="BADDDFDA-0D31-4B01-8816-7DB99ECC5592" to="…@tigase.im"
    from="n…o@conference.….org" type="error">
    <join xmlns="urn:xmpp:mix:core:1">
        <subscribe node="urn:xmpp:mix:nodes:messages"/>
        <subscribe node="urn:xmpp:mix:nodes:participants"/>
        <subscribe node="urn:xmpp:mix:nodes:info"/>
        <subscribe node="urn:xmpp:avatar:metadata"/>
        <nick>CData size: 6</nick>
    </join>
    <error code="503" type="cancel">
        <service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
        <text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas" xml:lang="en">CData size: 56</text>
    </error>
</iq>