Android app crash during pdf open #13597

Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'long java.lang.Long.longValue()' on a null object reference
    at com.owncloud.android.datamodel.OCFile.isInternalFolderSync(OCFile.java:1058)
    at com.owncloud.android.datamodel.FileDataStorageManager.isPartOfInternalTwoWaySync(FileDataStorageManager.java:2504)
    at com.owncloud.android.ui.fragment.FileDetailFragment.updateFileDetails(FileDetailFragment.java:572)
    at com.owncloud.android.ui.fragment.FileDetailFragment.onViewCreated(FileDetailFragment.java:266)
    at androidx.fragment.app.Fragment.performViewCreated(Fragment.java:3152)
    at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:608)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:286)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2164)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2059)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:2002)
    at androidx.fragment.app.FragmentManager$5.run(FragmentManager.java:702)
    at android.os.Handler.handleCallback(Handler.java:942)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:201)
    at android.os.Looper.loop(Looper.java:288)
    at android.app.ActivityThread.main(ActivityThread.java:7924)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)