Like Calahan, I'm thinking the error you're seeing is mod related. I'm going to move this thread to Mod Bugs and maybe someone there can help you out.
The graphics thing is a separate issue that isn't causing obvious symptoms right now, but may in the future. For whatever reason, RimWorld (or more likely the Unity framework) isn't able to initialize DX 10+. You could ignore it for now, but keep it in mind in case something breaks graphic-wise.
The graphics thing is a separate issue that isn't causing obvious symptoms right now, but may in the future. For whatever reason, RimWorld (or more likely the Unity framework) isn't able to initialize DX 10+. You could ignore it for now, but keep it in mind in case something breaks graphic-wise.