PLEASE FIX!!!!!!

Best game ever but... I have been playing for like a year and Ive been SO addicting and I had everything FULLY upgraded, and then... Suddenly it crashed. So I tried to open it again... IT KEPT ON CRASHING! At this point Im desprate to get my favourite game back ;(.
I dont care about about refunds BUT PLEASE FIX!!!

Rugrug26303639101 about Zombieville USA 2, v1.5.1