Hey so all old saves of the game won't work I'm not really sure why but the creator said something about that in the new update post so you might want to look there
I'm sorry, my dear, but saves were always going to be broken with this update. The game file is totally different and tons of corrections and updates were made. Eventually a skip feature will be put in and I'm hoping I've found a way to keep saves in-tact in the meantime.