For me, I have an iPhone 4s with iOS 8.1.3. My main vault won't load at all. I load the game, try to enter the vault, and my phone crashes. I have tried turning my phone off and on again.
What do I do? Should I just consider the vault dead and delete it? It did have some pretty baller items. A Tenpenny suit and a 19-22 Dam Minigun.