Hallo,
ich habe von einem Moment auf den anderen keinen Zugang zur Serveroberfläche mehr. In die Admin-Client sowie auch die anderen komme ich ohne weiteres nur eben nich zur Serveroberfläche.

?????

Hier noch der Log:
19:58:58 [ERROR] [SwingWorker-pool-1-thread-1] [server.gui.login.LoginController$LoginWorker][221] Fehler beim Verbindungaufbau
java.lang.NullPointerException
at server.gui.rmi.RemoteGUIServer.getAlarmHistoryByDa te(RemoteGUIServer.java:870)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages( Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (Unknown Source)
at java.lang.Thread.run(Unknown Source)
at sun.rmi.transport.StreamRemoteCall.exceptionReceiv edFromServer(Unknown Source)
at sun.rmi.transport.StreamRemoteCall.executeCall(Unk nown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invo keRemoteMethod(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invo ke(Unknown Source)
at $Proxy0.getAlarmHistoryByDate(Unknown Source)
at server.gui.table.DataTableController.<init>(DataTa bleController.java:27)
at server.gui.MainFrameController.<init>(MainFrameCon troller.java:47)
at server.gui.login.LoginController$LoginWorker.doInB ackground(LoginController.java:201)
at server.gui.login.LoginController$LoginWorker.doInB ackground(LoginController.java:1)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unkn own Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (Unknown Source)
at java.lang.Thread.run(Unknown Source)