Black Screen (Bullet Witch)

the problem is that in the Chapter in the forest where there are houses,there when I go to the Church(where there are a lot of those zombie runners) when the heroine herself to enter that room then for some reason abruptly the screen fades out while you hear that the character is still running around and attacking and attacking her,but all the time black screen(the game pirates,the none GTX 560 TI,win 7,graphics minimum all off) what can it be? this problem is in fact only in this place.