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java.lang.NullPointerException: 	at org.traccar.database.DeviceManager.getAllGroups(DeviceManager.java:272)	at org.traccar.database.PermissionsManager.refreshPermissions(PermissionsManager.java:98)	at org.traccar.database.PermissionsManager.(PermissionsManager.java:79)	at org.traccar.Context.init(Context.java:218)	at org.traccar.Main.main(Main.java:35)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:325)	at java.lang.Thread.run(Thread.java:745)