First off I really love the game and overall there is not much to complain about, but I wouldn't report an issue if there wouldn't be one.

Since some time already the game crashes when I reach a level-up and at the same time something explodes (Creeper, TNT, Fuze Shot, etc).
I noticed that you at least impleted saving collected equipment and diamonds, but it is still frustrating to have the level not completed nevertheless.
Of course you could blame reaching a certain point of the game where there's a lot of action on the screen but I also experience the same problem after I created a brand new character, with only one mob on screen that died due to Fuze Shot and the following level-up froze my game completely yet again.