Did your error show like this when you loaded a save -Thanks for the suggestion as I'm not proficient with backend issues on games. However, I tried this and I'm still getting the exception error everywhere. I used version 2.10 for the replacement, but still not working properly.
"I'm sorry, but an uncaught exception occurred.
While running game code:
File "renpy/common/00action_file.rpy", line 441, in __call__
renpy.load(fn)
ImportError: No module named matrix"
That is usually fixed with the Lib and Renpy folders being copied and pasted. Try the files at these links -
https://attachments.f95zone.to/2020/11/928216_lib.7z
https://attachments.f95zone.to/2020/11/928218_renpy.7z
If that doesn't work, try posting a copy of the error log and probably someone will have a look and suggest a fix. Good luck.