It might be a device thing, but I haven't touched the free Android version in like 1.5 years. I know Renpy had a lot of specific Android issues that got fixed in later versions, which the paid version of Stranded in Space uses, so it could be some conflict with Renpy.
I assume this is happening after the sex scene with Claire during the family vacation flashback? After the sex scene, Celeste and the MC's father interrupts, and you're saying it crashes right when she appears?
Can't think of what could be causing it.