Crashes and more crashes

Now I love Minecraft, but its been crashing A LOT for me recently. I get on my world and play for a minute and then... it crashes. Im building a house, it crashes. Im just playing singleplayer and it crashes SO MUCH! So, Im not sure if its me or Minecraft but, after I signed into Xbox live this has been happening! Thanks and hope this gets fixed soon!❤️

RowanFall about Minecraft: Pocket Edition, v1.1.5