Mhh... that cheat mode doesn't change existing code, as far as I know.The only Thing i did was adding the 0x52 Cheat Mod.
And i've got no script.rpy only scr.rpa![]()
If you only have .rpa files it means you haven't extracted the code from the archive files, so you should not be able to modify it.
Nonetheless that error « Exception: Sayer 'ca' is not defined. » definitely means that in your source code the line
default ca = Character("???", who_color="#7c23b0")#Carol is missing, but is not missing from my source code.Chances are you download is corrupted.
Do you have a savegame just before that exception occurred? If so, try to download the game again and load from that savegame without making any modification (not even the cheat mode, also I doubt that can be the problem, since I have added it to my game and gives me no problem) and see if the exception persist.