#1149 pokemon mystery dungeon: Explorers of sky bug

[Himnes]

The game worked fine till now. All of sudden I can't go to any dungeon without the game completely freezing. The screen always goes black before going to a dungeon which is normal for the game but then it freezes right there.
Any suggestions on how to fix this?

[zeromus]

have you been using in-game saves or only savestates