Ok could you close SPT, remove the + from your SPT file path, and then delete the launcher config json (user/launcher/config.json), and launch it back up?
I have been re-informed by the other Helpers in the Discord that the error I was stating is corrupted files, is in fact not and is to do with having special characters in the SPT file path.
It works, and no more error shows up, thank you for helping me!