...Never, renpy always saves data in your hidden appdata folder in users too, that's how you can safely delete your old version when you download an update and still have all your saves (and gallery).

Make sure you can view hidden files too (it's a setting you can tweak while you are looking in any folder), it should be in your pc -> users -> (your username) -> appdata -> roaming  -> renpy  -> tvern of spear-1. you should see all your saves, the persistent one and a sync folder, with more in, anyway, try experimenting a bit: i'd try deleting the saves from the game folder (game -> saves) and see if it all works, or copy and paste those in appdata in the saves folder (copy and paste the folders in a safe spot, maybe on the desktop, so you don't risk losing anything regardless of what you do). You could even take saves  out and leave none or one or two in, who knows, maybe it's a specific save fucking everything up the instant it pops up in the saves screen in the game.