Issues

I havent had any issues with Minecraft before, but then I updated it, and when I opened the app it went to a blank white screen then kicked me off. I tried to get on several times but it kept doing the same thing. I decided to delete the app and reinstall it. After it finished downloading, I got on. This time it let me on, but when I tried to sign into Xbox Live (so I can play with my friends) it kicked me off. I got back on and tried to sign in several times, but every time it kicked me off. Could you please fix this, the main reason I play this game so much is to play with my friends and I havent been able to do that ever since the update. Thank you so much!

????????????? about Minecraft: Pocket Edition, v1.0.4