the same problem is happening to me. I chose to meet Leon for the party and when I choose to hug him back after telling him about me leaving this pops up
edit: also, the creator says there is supposed to be a save system but when i open the game in the web browser there is nothing there, at least for me + I tried launching the game through itch.io app and its just a white screen, no text or anything but after waiting for a while the title showed up LOL