Oh no! Sorry to hear about the crashes. Did you get any particular error?
Hm. I thought this might be a memory issue, but I ran the game while watching the task manager, and that doesn't seem to be the case for me at least.
I wonder if this happens for you with other Ren'py games. Have you tried deleting the game and re-downloading it? (your saves should be fine, as they automatically save to the appdata folder.)