Was an awesome app

Was one of my fav apps as Ive used all exercise suggestions and have gotten great results. However as of recently app will not stay open now. I click on open and it keeps crashing/shutting down within 3 sec of opening!! Plz fix. Frustrated :-(..... Adding that I purchases the other apps and along with this app still and now the others also keep crashing and shutting down immediately upon opening ... Plz FIX !!!!!

FireintheSky72 about Brazilian Butt – Personal Fitness Trainer App, v2.9.3