Can I ask what OS you're playing on, additionally do you have any screenshots you can provide us before it closes itself, additionally which version are you executing the 64-bit or 32-bit?
Viewing post in Build 0.4 (Plus another apologetic Delay) comments
Howdy Delta. I'm unsure if you've seen our latest DevLog but we actually discovered this is just an issue with Ren'py 7.4 and certain devices.
https://www.renpy.org/doc/html/display_problems.html
Give the instructions in this link a try and get back with me if they work or don't.