its no problem!
Unfortunately on itch.io there isn't a button to just update what's new, so you'd have to delete the old game and reinstall. I would say don't worry about losing progress, it's easy to just move your save file over but the glitch is with new files LOL
But we are working on fixing the game and making it playable again ! Lost media no more, we are hoping to fix it by today or tomorrow afternoon.