A small note that after version 18.3.1 update, some places causes the app to crash. Uh oh.
Where it can crash
There’s a possibility the app will crash in these places:
- Dungeon’s helper selection screen
- Ffriend list
- Choose friend for trade screen
Official solution
The official way mentioned to fix this is to use Data Recovery option (top left button) on the title screen.
Do note that this requires re-downloading data for the game, so be sure to be on Wi-Fi if your data has restrictions.
