Mein O2 (Rechnungen, Vertragdetails etc.) seit >1 Monat nicht mehr zugänglich

Wie der Titel schon sagt, sobald ich versuche auf irgend eine Seite unter "Mein O2" zuzugreifen, bekomme ich vom Server einen Redirect auf https://www.o2online.de/ecare-interessenten/Uebersicht und sehe dort nur die folgende Fehlermeldung:

(Zum Lesen markieren)HTTP Status 500 -type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.exceptionjavax.servlet.ServletException: Filter execution threw an exceptionroot causejava.lang.NoClassDefFoundError: de/o2/portal/ui/base/unica/UnicaEventAnnotation java.lang.Class.getDeclaredMethods0(Native Method) java.lang.Class.privateGetDeclaredMethods(Class.java:2688) java.lang.Class.getDeclaredMethod(Class.java:2115) java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1431) java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:72) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:494) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) java.security.AccessController.doPrivileged(Native Method) java.io.ObjectStreamClass.(ObjectStreamClass.java:468) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectStreamClass.(ObjectStreamClass.java:464) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectOutputStream.writeClass(ObjectOutputStream.java:1213) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1120) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) java.util.ArrayList.writeObject(ArrayList.java:747) sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:483) java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:260) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78) org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) org.apache.wicket.Application$2.onDetach(Application.java:1665) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)root causejava.lang.ClassNotFoundException: de.o2.portal.ui.base.unica.UnicaEventAnnotation org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521) java.lang.Class.getDeclaredMethods0(Native Method) java.lang.Class.privateGetDeclaredMethods(Class.java:2688) java.lang.Class.getDeclaredMethod(Class.java:2115) java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1431) java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:72) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:494) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) java.security.AccessController.doPrivileged(Native Method) java.io.ObjectStreamClass.(ObjectStreamClass.java:468) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectStreamClass.(ObjectStreamClass.java:464) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectOutputStream.writeClass(ObjectOutputStream.java:1213) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1120) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) java.util.ArrayList.writeObject(ArrayList.java:747) sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:483) java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:260) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78) org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) org.apache.wicket.Application$2.onDetach(Application.java:1665) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)note The full stack trace of the root cause is available in the Apache Tomcat/7.0.14 logs.Apache Tomcat/7.0.14HTTP Status 500 -type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.exceptionjavax.servlet.ServletException: Filter execution threw an exceptionroot causejava.lang.NoClassDefFoundError: de/o2/portal/ui/base/unica/UnicaEventAnnotation java.lang.Class.getDeclaredMethods0(Native Method) java.lang.Class.privateGetDeclaredMethods(Class.java:2688) java.lang.Class.getDeclaredMethod(Class.java:2115) java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1431) java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:72) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:494) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) java.security.AccessController.doPrivileged(Native Method) java.io.ObjectStreamClass.(ObjectStreamClass.java:468) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectStreamClass.(ObjectStreamClass.java:464) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectOutputStream.writeClass(ObjectOutputStream.java:1213) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1120) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) java.util.ArrayList.writeObject(ArrayList.java:747) sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:483) java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:260) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78) org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) org.apache.wicket.Application$2.onDetach(Application.java:1665) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)root causejava.lang.ClassNotFoundException: de.o2.portal.ui.base.unica.UnicaEventAnnotation org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521) java.lang.Class.getDeclaredMethods0(Native Method) java.lang.Class.privateGetDeclaredMethods(Class.java:2688) java.lang.Class.getDeclaredMethod(Class.java:2115) java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1431) java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:72) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:494) java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) java.security.AccessController.doPrivileged(Native Method) java.io.ObjectStreamClass.(ObjectStreamClass.java:468) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectStreamClass.(ObjectStreamClass.java:464) java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) java.io.ObjectOutputStream.writeClass(ObjectOutputStream.java:1213) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1120) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) java.util.ArrayList.writeObject(ArrayList.java:747) sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:483) java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:260) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78) org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) org.apache.wicket.Application$2.onDetach(Application.java:1665) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)note The full stack trace of the root cause is available in the Apache Tomcat/7.0.14 logs.Apache Tomcat/7.0.14Eigentlich hatte ich den Fehler vor 3 Wochen schon mal gemeldet, und der Fehler wurde angeblich an die Technik gemeldet, aber anscheinend ist Qualität des Supports auf dem gleichen Niveau wie das Netz.