Not sure man i used a solarfall and just changed it up but i never crash.
im running a gtx 1070 16gb ram and i5 7640x

I was using it with these mods. Can you try it? I never had any crashes before. Except exiting game or returning to main menu. But since i start to use solarfall with this mods. I crash like crazy.

Glare of Judgement
Devastation
Sin Illuminated
Sunrise
Magnified Beam
Dawn Abridged

I came to the forums to check on this very issue. I believe the culprit is the Sunrise modifier specifically causing a major memory leak issue, which sucks because it is a major part of my build. It appears it isn't just me who has been experiencing this, so hopefully it gets fixed soon.

edit: OP, does your game actually crash to desktop? Or is it locking up your PC and forcing hard restarts?

Hey.
Since I started to use solarfall in my rotation yesterday, my game keeps crashing as well.
It sends me always back to desktop.
I used to play with the skill before, but not with access to all runes.

i5, 16gb, gtx 1070

Since I started using Solarfall my game is also crashing very often. I would approximate it crashes every 45 minutes of play.