CRASHHHHHHH?????

The game is fun and all but I cant play the game for 1 minute without it crashing! When it crashes,
I will get back on the game but everything I did the last time disappears. It also says that I used the materials that arent there. I did use them but not for them to just disappear and go to waste???????

Southpawpruitt about Minecraft: Pocket Edition, v1.0.4