Danganronpa 2 bug

So there's a bug in my Danganronpa 2 game and i'm stuck so please help.

I'm in chapter 4, at the strawberry house, and i need to explore the lounge. When I finish to do it, i'm literally stuck. I can't leave at all. When i try to go, it doesnt work, and i can't teleport. Nothing work, i tried to restart the chapter but it's the same and i got the bug again.

Please help me, i want to play again :(