Maybe a light spoiler for anyone who hasn't finished the previous version. (Just a name drop.)
If it's just saves not loading, have you tried a couple older saves? I got an error with my 2 last saves, but the one before that worked. I haven't played more yet to see if it will continue fine, but it should. I forget the context, but I think the save that worked had me following Luna through a house (if that helps any).