Undying help
 

Okay having a problem with undying.
When you first get the Kesingers room and go through that red door into the other realm I recieve the following msg:
Failed launching URL
Class in file ClassEditor.transbuffer

and I cannot continue from there.
I talked to a friend who has the game and he says there are supposed to be some stairs going down but I dont see them.

Can anyone help??