I'm officially fed up. After trying to figure out this issue,
my game has now completely stopped working. I don't even know what the hell happened. I was trying to go into the game to test a theory I had that might have been able to fix the above issue, but when I tried to start a new game, I selected "New," and the game crashed. It did it 3 times.
I have done everything right. I have never installed a single mod without reading the description top to bottom, I have never used the incorrect version of a mod or its requirements, and most importantly, I have always tested a mod thoroughly before deciding to keep it. Words cannot describe how pissed I am right now. I have put almost 4 months into this, and now it's broken.
If my only option is to delete everything and start all the way over, then I'm done. I will not waste another second of my life completely reinstalling everything just to have this happen again. Life is too short.