Doesn't look like a mod issue. Something is wrong with the dialogue history (what can be seen in the "History" screen).
But, you are right, the first few chapters had some savegame compatibility error and I think that even recently there were code changes to early chapters, which would make saves fail. Maybe there was a change in the used Ren'Py version, as well. Not sure.
Anyway, if you don't have a working save and want to skip through from the beginning: Your error seems to occure in chapter 3/4. So, skipping to the choice "Tell a dirty 'yo mama' joke", should get you roughly to where you were.
Edits:
I wrote a file that might fix this specific issue by creating the missing attribute in the renpy.store. I can't guarantee, that there isn't another issue after that.
- Download the attached file
- Remove the "4803535_" from the beginning, so that the file's name is "zzhistory_fix.rpy"
- Place the file into the "FurrHouse-Chapter16-pc\game\" folder and try to load a save.