Restart issue

RockOmnivore

CK2 restarts every time I get to level 25, 27, around there, every time I get there. Is this the game or something with my IPad/memory? Reached level 30 once. I have it saved to my cloud early in the game (level 2) with the weapons I want, including the de-animator for mulit-kills, and my credits. Nothing lost, just annoying to play over again and again, just to have it crash/re-start just before lvl 30. Any suggestions on how to keep it from re-starting? Fun game, but in serious need of some variation in the missions as you advance.