Game crashing in vicinity of Callisto?

[JJJacksonTyler]

Running RSS on KSP 1.3.1 with a great many mods, some of them displaying "incompatible" messages at startup but working fine. Not exactly a healthy KSP install...but so long as it runs I am a bit laissez-faire about the whole thing.

Trying to land on Callisto and something odd happens. At a low altitude, the entire moon disappears, as well as my spacecraft (I am left with just the skybox), and if I go into the map, the game CTD's. I suspect since it's triggered by proximity/altitude it could be a texture thing? 
https://drive.google.com/open?id=1mXgo3fjR304X5hvG_S9NCmoHbx13GDL      - error

 

https://drive.google.com/open?id=1bPjVYBaq7buozea8EBQyP9VvfKuQFL1K   - output.log

I think it's important to note that this is only happening near Callisto and I have been able to explore the Moon, Mercury, Mars, Phobos, Deimos, etc just fine, which is why I am hesitant to blame it on a parts mod. 

But here's my gamedata folder:

 

I really appreciate any help, but in the meantime, I suppose I just got 2001'd. 

 

Edited July 16, 2018 by JJJacksonTyler