I'm using the walkthrough mod, just to get that out of the way, but on the screen where you are going to go to sleep and have the option of choosing between..... well, a LOT of the ladied, when I try to save at that point I get this error:
I'm sorry, but an uncaught exception occurred.
While running game code:
File "renpy/common/00action_file.rpy", line 372, in __call__
renpy.save(fn, extra_info=save_name)
PicklingError: Can't pickle <type 'function'>: attribute lookup __builtin__.function failed