Android game shuts down but doesn't crash on startup

Upon initializing my game, after I get the "Made with Unity" screen, the game turns dark and then it appears as it is loading while giving me the messae "Wait", but then it just shuts down. It does not appear as "... stopped working", It just appears as it minimizes the app. I have no ideia why this started happening all of a sudden. From what I remember from what I've done since the last time I built my game is that I added the Unity IAP and added just a tutorial for my game (a simple sprite animation). I didn't make any changes in stuff like google play or whatsoever. I have tried to remove the unity IAP but it still doesn't work.

To sum it up, this is what happends step-by-step: http://imgur.com/a/5htid