NullPointerException in ConversationInfoActivity

[mahibi]

from gplay for 19.0.0:

Exception java.lang.NullPointerException:
  at com.nextcloud.talk.conversationinfo.ConversationInfoActivity.handleConversation (ConversationInfoActivity.kt:686)
  at com.nextcloud.talk.conversationinfo.ConversationInfoActivity.access$handleConversation (ConversationInfoActivity.kt:94)
  at com.nextcloud.talk.conversationinfo.ConversationInfoActivity$initObservers$2.invoke (ConversationInfoActivity.kt:232)
  at com.nextcloud.talk.conversationinfo.ConversationInfoActivity$initObservers$2.invoke (ConversationInfoActivity.kt:227)
  at com.nextcloud.talk.conversationinfo.ConversationInfoActivity$sam$androidx_lifecycle_Observer$0.onChanged
  at androidx.lifecycle.LiveData.considerNotify (LiveData.java:133)
  at androidx.lifecycle.LiveData.dispatchingValue (LiveData.java:146)
  at androidx.lifecycle.LiveData$ObserverWrapper.activeStateChanged (LiveData.java:483)
  at androidx.lifecycle.LiveData$LifecycleBoundObserver.onStateChanged (LiveData.java:440)
  at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent (LifecycleRegistry.kt:322)
  at androidx.lifecycle.LifecycleRegistry.forwardPass (LifecycleRegistry.kt:258)
  at androidx.lifecycle.LifecycleRegistry.sync (LifecycleRegistry.kt:294)
  at androidx.lifecycle.LifecycleRegistry.moveToState (LifecycleRegistry.kt:143)
  at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent (LifecycleRegistry.kt:126)
  at androidx.lifecycle.ReportFragment$Companion.dispatch$lifecycle_runtime_release (ReportFragment.kt:190)
  at androidx.lifecycle.ReportFragment$LifecycleCallbacks.onActivityPostStarted (ReportFragment.kt:119)
  at android.app.Activity.dispatchActivityPostStarted (Activity.java:1465)
  at android.app.Activity.performStart (Activity.java:8653)
  at android.app.ActivityThread.handleStartActivity (ActivityThread.java:4204)
  at android.app.servertransaction.TransactionExecutor.performLifecycleSequence (TransactionExecutor.java:221)
  at android.app.servertransaction.TransactionExecutor.cycleToPath (TransactionExecutor.java:201)
  at android.app.servertransaction.TransactionExecutor.executeLifecycleState (TransactionExecutor.java:173)
  at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:97)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2574)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loopOnce (Looper.java:226)
  at android.os.Looper.loop (Looper.java:313)
  at android.app.ActivityThread.main (ActivityThread.java:8762)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:604)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1067)

line 686:
setUpNotificationSettings(databaseStorageModule!!)