java.lang.NullPointerException: This exception has no message.

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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 java.lang.Thread.run(Thread.java:745)

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