Seinh: I have a problem with the game I downloaded every time I enter to the light house where you get the Glyph of Light the game stops and a window appears with the message Kain2.exe stopped working I need help with this bug
If Azreals method doesn't work and you want to still do this area you may need to use a different/earlier save file and retrace your steps.
It seems that for some reason on this version of the game that if you save right after some cutscenes the game file will corrupt and will crash at the same spot over and over and over again. I THINK, ASSUME..etc. that the coding may be confused and part of it is trying to re-activate that cutscene but since you are actually past it, it just causes a crash to the game. The crash points typically seem to be where a cutscene normally cuts into the game.
I would suggest making multiple saves and try to save if possible only after bosses or events areas you have no purpose to go back to. This way if you say beat Melchiah and save right after you beat him in his chamber. You aren't likely ever to return to his chamber, therefore you aren't likely to trigger any crash.