Site panel is not saving the right panels - strange behavior

Hello,

I have a strange behavior while saving site panel menus.
It seems like the database or the allocation is not working for us anymore.

Example:

I go to “look and Feel” -> “Panel” -> “Panel List” (sry it’s in german) and put the Navigation to the left panel by drag and drop

When I’m done with that and saved the setting, I refreshed the site and what I get is the “Blog Archiv” instead of the Navigaion Panel:

blog-archive

When I put the Blog archive back to the panel overview, It goes automatically to Navigation

It seems like the allocation in the database is crashed or something like that.

Does anyone have an idea ?

A few minutes ago, I put the Tag Cloud on the right, and right after that, the Navigation Panel just disappeard.

2019-03-29%2012_52_23-Window

PS FYI: I had this problem since the first day of installation.

PPS: If I create the sidemenus just with the “PANEL DISPLAYED ON THE LEFT” and “PANEL DISPLAYED ON THE RIGHT” Fields (so without Drag and Drop), everything is working fine.

But If I just edit “PANEL DISPLAYED ON THE LEFT” , things from “PANEL DISPLAYED ON THE RIGHT” getting deleted.

Just tried that on XWiki 11.2 and it worked fine. You’ll need to tell us how to reproduce (with details) as otherwise it’s going to be hard to help you.

Also did you check the xwiki logs, in case there’s something in there?

Hi, no Problem.

I did a short video for you because writing things like that are getting to complicated :slight_smile:

I have no problem with resetting the xwiki (worse case), but maybe it’s interesting for you if any customer is running in to the same problem.

My “/var/log/tomcat8/catalina.out” is just telling me nothing. I, just in case, have the logs for you after the startup.

Restart at 14:17 of Tomcat. This is the log after restart.
Or is there more logging I can provide you ?

I set the logging for panel to Debug under “Administration” - > “Other” -> “Logging”

29-Mar-2019 14:17:03.080 INFO [Thread-12] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
2019-03-29 14:17:03,411 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,411 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,411 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,411 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,412 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,413 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,413 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,413 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,413 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,413 [coreCloseExecutor-12-thread-1] WARN  o.i.j.ResourceDMBean           - ISPN000042: Did not find queried attribute with name coreHashCode
2019-03-29 14:17:03,450 [expiration-thread--p3-t1] WARN  o.i.e.i.ExpirationManagerImpl  - ISPN000026: Caught exception purging data container!
org.infinispan.IllegalLifecycleStateException: Cannot wire or start components while the registry is not running
        at org.infinispan.factories.impl.BasicComponentRegistryImpl.prepareWrapperChange(BasicComponentRegistryImpl.java:610)
        at org.infinispan.factories.impl.BasicComponentRegistryImpl.wireWrapper(BasicComponentRegistryImpl.java:158)
        at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.wire(BasicComponentRegistryImpl.java:736)
        at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:712)
        at org.infinispan.expiration.impl.ExpirationManagerImpl.processExpiration(ExpirationManagerImpl.java:94)
        at org.infinispan.expiration.impl.ExpirationManagerImpl$ScheduledTask.run(ExpirationManagerImpl.java:245)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
29-Mar-2019 14:17:03.537 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [xwiki] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
29-Mar-2019 14:17:03.539 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [xwiki] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
 com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:64)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 java.lang.Thread.run(Thread.java:748)
29-Mar-2019 14:17:03.540 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [com.codahale.metrics.ThreadLocalRandom$1] (value [com.codahale.metrics.ThreadLocalRandom$1@53933b30]) and a value of type [com.codahale.metrics.ThreadLocalRandom] (value [com.codahale.metrics.ThreadLocalRandom@3394eae]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.540 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [com.codahale.metrics.ThreadLocalRandom$1] (value [com.codahale.metrics.ThreadLocalRandom$1@53933b30]) and a value of type [com.codahale.metrics.ThreadLocalRandom] (value [com.codahale.metrics.ThreadLocalRandom@5478d288]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.541 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [com.codahale.metrics.ThreadLocalRandom$1] (value [com.codahale.metrics.ThreadLocalRandom$1@53933b30]) and a value of type [com.codahale.metrics.ThreadLocalRandom] (value [com.codahale.metrics.ThreadLocalRandom@155a5a2a]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.541 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [com.codahale.metrics.ThreadLocalRandom$1] (value [com.codahale.metrics.ThreadLocalRandom$1@53933b30]) and a value of type [com.codahale.metrics.ThreadLocalRandom] (value [com.codahale.metrics.ThreadLocalRandom@3fc537f1]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.541 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@525da301]) and a value of type [java.util.Stack] (value [[org.xwiki.context.ExecutionContext@4023c750]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.541 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@525da301]) and a value of type [java.util.Stack] (value [[org.xwiki.context.ExecutionContext@7ef4e74]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.542 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@11838bc7]) and a value of type [java.util.Stack] (value [[org.xwiki.container.servlet.ServletRequest@2ef9675d]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.542 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@70be3c95]) and a value of type [java.util.Stack] (value [[org.xwiki.container.servlet.ServletResponse@d5f4018]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.542 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@525da301]) and a value of type [java.util.Stack] (value [[org.xwiki.context.ExecutionContext@8f2fc7]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.542 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@11838bc7]) and a value of type [java.util.Stack] (value [[org.xwiki.container.servlet.ServletRequest@65a96304]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.542 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@70be3c95]) and a value of type [java.util.Stack] (value [[org.xwiki.container.servlet.ServletResponse@6472b1b0]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
29-Mar-2019 14:17:03.571 INFO [Thread-12] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
29-Mar-2019 14:17:03.575 INFO [Thread-12] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
29-Mar-2019 14:17:03.959 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.963 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/common], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.963 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/common/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.963 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/common], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.965 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.965 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.966 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/server/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.966 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/server], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.967 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.967 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/var/lib/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.967 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/shared/classes], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:03.968 WARNING [main] org.apache.catalina.startup.ClassLoaderFactory.validateFile Problem with directory [/usr/share/tomcat8/shared], exists: [false], isDirectory: [false], canRead: [false]
29-Mar-2019 14:17:04.651 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.30 (Ubuntu)
29-Mar-2019 14:17:04.652 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Aug 13 2018 20:23:56 UTC
29-Mar-2019 14:17:04.652 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.5.30.0
29-Mar-2019 14:17:04.652 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
29-Mar-2019 14:17:04.652 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            4.15.0-46-generic
29-Mar-2019 14:17:04.652 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
29-Mar-2019 14:17:04.653 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/lib/jvm/java-8-openjdk-amd64/jre
29-Mar-2019 14:17:04.653 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_191-8u191-b12-2ubuntu0.18.04.1-b12
29-Mar-2019 14:17:04.653 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
29-Mar-2019 14:17:04.653 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /var/lib/tomcat8
29-Mar-2019 14:17:04.653 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /usr/share/tomcat8
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/var/lib/tomcat8/conf/logging.properties
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.awt.headless=true
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Xmx2048m
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
29-Mar-2019 14:17:04.654 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/var/lib/tomcat8
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/share/tomcat8
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/tmp/tomcat8-tomcat8-tmp
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.16] using APR version [1.6.3].
29-Mar-2019 14:17:04.655 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
29-Mar-2019 14:17:04.656 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
29-Mar-2019 14:17:04.660 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.0g  2 Nov 2017]
29-Mar-2019 14:17:04.775 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
29-Mar-2019 14:17:04.800 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
29-Mar-2019 14:17:04.819 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 810 ms
29-Mar-2019 14:17:04.868 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
29-Mar-2019 14:17:04.868 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.30 (Ubuntu)
29-Mar-2019 14:17:04.886 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor [/etc/tomcat8/Catalina/localhost/xwiki.xml]
2019-03-29 14:17:12,764 [localhost-startStop-1] INFO  iPropertiesConfigurationSource - loading xwiki.properties from default location /etc/xwiki/xwiki.properties
2019-03-29 14:17:13,054 [localhost-startStop-1] INFO  o.x.e.i.ServletEnvironment     - Using permanent directory [/var/lib/xwiki/data]
2019-03-29 14:17:15,949 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.platform:xwiki-platform-distribution-flavor-mainwiki/11.1] on namespace [wiki:xwiki] (InvalidExtensionException: Dependency [org.xwiki.platform:xwiki-platform-oldcore-[11.1]] is incompatible with the core extension [org.xwiki.platform:xwiki-platform-legacy-oldcore/11.2])
2019-03-29 14:17:15,952 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.webjars.npm:bootstrap-3-typeahead/4.0.2] (InvalidExtensionException: Extension [org.webjars.npm:bootstrap-3-typeahead/4.0.2] already exists as a core extension)
2019-03-29 14:17:15,952 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.contrib:application-ckeditor-webjar/1.31] (InvalidExtensionException: Extension [org.xwiki.contrib:application-ckeditor-webjar/1.31] already exists as a core extension)
2019-03-29 14:17:15,953 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.contrib:application-ckeditor-plugins/1.31] (InvalidExtensionException: Extension [org.xwiki.contrib:application-ckeditor-plugins/1.31] already exists as a core extension)
2019-03-29 14:17:21,503 [localhost-startStop-1] INFO  o.x.s.s.i.EmbeddedSolrInstance - Starting embedded Solr server...
2019-03-29 14:17:21,505 [localhost-startStop-1] INFO  o.x.s.s.i.EmbeddedSolrInstance - Using Solr home directory: [/var/lib/xwiki/data/solr]
2019-03-29 14:17:23,755 [coreLoadExecutor-6-thread-1] WARN  o.a.s.c.SolrResourceLoader     - Solr loaded a deprecated plugin/analysis class [solr.SynonymFilterFactory]. Please consult documentation how to replace it accordingly.
2019-03-29 14:17:26,665 [localhost-startStop-1] INFO  o.x.s.s.i.EmbeddedSolrInstance - Started embedded Solr server.
29-Mar-2019 14:17:29.731 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor [/etc/tomcat8/Catalina/localhost/xwiki.xml] has finished in [24,844] ms
29-Mar-2019 14:17:29.733 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/var/lib/tomcat8/webapps/ROOT]
29-Mar-2019 14:17:30.445 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
29-Mar-2019 14:17:30.449 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/var/lib/tomcat8/webapps/ROOT] has finished in [717] ms
29-Mar-2019 14:17:30.455 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
29-Mar-2019 14:17:30.473 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 25652 ms

Thanks, this log shows several things:

2019-03-29 14:17:15,949 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.platform:xwiki-platform-distribution-flavor-mainwiki/11.1] on namespace [wiki:xwiki] (InvalidExtensionException: Dependency [org.xwiki.platform:xwiki-platform-oldcore-[11.1]] is incompatible with the core extension [org.xwiki.platform:xwiki-platform-legacy-oldcore/11.2])
2019-03-29 14:17:15,952 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.webjars.npm:bootstrap-3-typeahead/4.0.2] (InvalidExtensionException: Extension [org.webjars.npm:bootstrap-3-typeahead/4.0.2] already exists as a core extension)
2019-03-29 14:17:15,952 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.contrib:application-ckeditor-webjar/1.31] (InvalidExtensionException: Extension [org.xwiki.contrib:application-ckeditor-webjar/1.31] already exists as a core extension)
2019-03-29 14:17:15,953 [localhost-startStop-1] WARN  ltInstalledExtensionRepository - Invalid extension [org.xwiki.contrib:application-ckeditor-plugins/1.31] (InvalidExtensionException: Extension [org.xwiki.contrib:application-ckeditor-plugins/1.31] already exists as a core extension)

You should use the Extension Manager to upgrade those extensions.

Thanks, this looks very weird but unfortunately I cannot reproduce locally. So there must be something special in your setup. I’d say, first, let’s make sure you have a proper XWiki 11.2 setup (see my previous message) and that you have a cleanly started XWiki.

Some time has past and we still couldn’t figure out what the “real” problem was, but we solved it.
It seems like the language setting was important. We had “german” but we needed “germen(germany)”, so the double country setting.

Now we can use the Panel like expected.

Close.