Fortunately there is only one important line, which is that cassidyCorruption4On is not defined.I don't think the exception translates well into the forum because of different symbols not being supported unless screencapped or something else that would properly show the code/script or whatever.
Now... it is defined... but Renpy gets a bit of a hissy fit going when a game is as large as Cabin. It wasn't defined when the game was started, but that shouldn't(tm) matter. The solution is for me to tell Renpy to set it harder.