Shutting Down VM Android Studio

Question

I am using Exoplayer and Google media framework library to develop an android app.

It's basically a video player with some ads. My app always crashes and the Logcat msg displays Shutting down VM and also some msgs like this-

Rejecting re-init on previously-failed class 
   java.lang.Class<com.google.android.libraries.mediaframework.
     exoplayerextensions.ObservablePlayerControl>
Rejecting re-init on previously-failed class 
   java.lang.Class<com.google.android.libraries.mediaframework.
     exoplayerextensions.ExoplayerWrapper

I am getting fullScreenCallback as null.

Is this the reason why my app is crashing.