Speedreading Crash

11-26 11:29:38.011 20095-20095/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.speedreading.alexander.speedreading, PID: 20095
    java.lang.NullPointerException: Attempt to invoke virtual method 'io.realm.RealmQuery io.realm.Realm.where(java.lang.Class)' on a null object reference
        at com.safonov.speedreading.training.fragment.passcource.repository.PassCourseRealmUtil.getResult(PassCourseRealmUtil.java:26)
        at com.safonov.speedreading.training.fragment.passcource.result.presenter.PassCourseResultPresenter$1.onTransactionCompleted(PassCourseResultPresenter.java:140)
        at com.safonov.speedreading.training.fragment.passcource.repository.PassCourseRealmUtil$2.onSuccess(PassCourseRealmUtil.java:63)
        at io.realm.Realm$1$1.run(Realm.java:1584)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:7409)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)