I had a similar issue on my old laptop (I still don't know the cause) so I stopped playing, then I downloaded the game onto the new laptop I had and its been working fine. It would crash when I put Rachel over Miss Newman's knee so I couldn't progress her. I tried to get help from the discord but it confused me more than it helped me
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It crashed after I purchased the ointment and attempted to level her up. I tried to focus on other students quests, however it was rather difficult as I couldn't continue Rachel's quest line, causing Maxine's to be hindered, along with Ava (I think thats her name, the voyer girl) However, on my new laptop it all works fine and I have managed to complete the game. I don't know what caused the crash, as the discord wasn't a great help an asked me a lot of questions that made no sense to me and I didn't know how to get the information they asked for