ArrayIndexOutOfBoundsException

[dogi]

Exception java.lang.ArrayIndexOutOfBoundsException:
  at io.realm.internal.OsResults.nativeGetRow
  at io.realm.internal.OsResults.getUncheckedRow (OsResults.java:357)
  at io.realm.OrderedRealmCollectionImpl$ModelCollectionOperator.get (OrderedRealmCollectionImpl.java:701)
  at io.realm.OrderedRealmCollectionImpl.get (OrderedRealmCollectionImpl.java:138)
  at io.realm.RealmResults.get (RealmResults.java:71)
  at org.ole.planet.myplanet.ui.exam.TakeExamFragment.onClick (TakeExamFragment.kt:197)
  at android.view.View.performClick (View.java:8043)
  at android.widget.TextView.performClick (TextView.java:17816)
  at android.view.View.performClickInternal (View.java:8020)
  at android.view.View.-$$Nest$mperformClickInternal
  at android.view.View$PerformClick.run (View.java:31850)
  at android.os.Handler.handleCallback (Handler.java:958)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loopOnce (Looper.java:230)
  at android.os.Looper.loop (Looper.java:319)
  at android.app.ActivityThread.main (ActivityThread.java:8893)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:608)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1103)