Bests & Worsts Reviews from Amazon

I've had this app before 0.15.0 and it worked well but I didn't get into mcpe then I got back into it so I downloaded this app again and I got it when I had the mcpe 0.15.1 and when I use it loads to home Screen perfectly but when I enter a world it won't load then lag me back to only the master app and I really need this app for fun stuff but it won't work for me. please fix it please. Anyway great app.