We’ve seen this error in the log (Openfire 4.5.2). Any ideas?
2021.05.17 17:18:08 org.jivesoftware.openfire.handler.IQHandler - Interner Serverfehler
java.lang.IllegalArgumentException: IQ must be of type 'set' or 'get'. Original IQ: <iq type="error" id="150-140399" from="romeo" to="juliet"><pubsub xmlns="http://jabber.org/protocol/pubsub"><subscribe jid="juliet"/><options><x xmlns="jabber:x:data"><field var="FORM_TYPE" type="hidden"><value>http://jabber.org/protocol/pubsub#subscribe_options</value></field><field var="pubsub#subscription_type"><value>items</value></field><field var="pubsub#subscription_depth"><value>all</value></field></x></options></pubsub><error code="401" type="auth"><not-authorized xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><presence-subscription-required xmlns="http://jabber.org/protocol/pubsub#errors"/></error></iq>
at org.xmpp.packet.IQ.createResultIQ(IQ.java:378) ~[tinder-2.0.0.jar:?]
at org.jivesoftware.openfire.pep.IQPEPHandler.handleIQ(IQPEPHandler.java:303) ~[xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.handler.IQHandler.process(IQHandler.java:62) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.IQRouter.handle(IQRouter.java:369) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.IQRouter.route(IQRouter.java:112) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:74) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pubsub.PubSubEngine.sendErrorPacket(PubSubEngine.java:1852) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pubsub.PubSubEngine.subscribeNode(PubSubEngine.java:668) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pubsub.PubSubEngine.process(PubSubEngine.java:101) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pep.PEPServiceManager.process(PEPServiceManager.java:230) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pep.IQPEPHandler.createSubscriptionToPEPService(IQPEPHandler.java:491) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.pep.IQPEPHandler.subscribedToPresence(IQPEPHandler.java:554) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.user.PresenceEventDispatcher.subscribedToPresence(PresenceEventDispatcher.java:143) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.handler.PresenceSubscribeHandler.process(PresenceSubscribeHandler.java:217) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.PresenceRouter.handle(PresenceRouter.java:175) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.PresenceRouter.route(PresenceRouter.java:79) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:84) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.net.StanzaHandler.processPresence(StanzaHandler.java:384) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.net.ClientStanzaHandler.processPresence(ClientStanzaHandler.java:102) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:285) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:203) [xmppserver-4.5.2.jar:4.5.2]
at org.jivesoftware.openfire.nio.ConnectionHandler.messageReceived(ConnectionHandler.java:183) [xmppserver-4.5.2.jar:4.5.2]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:1015) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:122) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:413) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:257) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:106) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.session.IoEvent.run(IoEvent.java:89) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:766) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:758) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:697) [mina-core-2.1.3.jar:?]
at java.lang.Thread.run(Thread.java:834) [?:?]