For those facing the crashing at the Battle shop:
- Once you have selected a modifier, DO NOT deselect it/tap multiple times. Deselecting will guarantee a crash.
- If you're crashing even on the first selection on the same fight, what you can do is to choose another fight (e.g. instead of selecting a normal story fight, select a training fight). This usually happens if you keep crashing on the same fight. Clearing another fight should fix the issue.