Crashing!

It seems like a good game, but when I go to summon my first rare hero my game just crashes. I tried deleting some of my other apps, but again it just crashed. Im not sure what the problem is, but if this is happening to anyone else can you let me know. Also please can people try to fix this if its an actual problem or if its just my device.

Luckeygirl45 about Dungeon Gems