I also have been having this issue
EDIT 1:
- I did some research, and according to others, the issue might be mod dependencies. Perhaps go through every mod and see it's dependencies and verify that you have them installed? I will try this and get back to you on my outcome.
EDIT 2:
- I went through all my mods and made sure I had their dependencies. After this, there were no more crashes and all went well!