I need help, I'm probably stupid

It looks like a coremod is trying to have it’s own way, regardless of startup order. You might have to do something like a binary search to figure out which one…
Complete server logs are much more useful; if you can put those on a site like github gist and put links here, you might get better help. In general, when making a bug report / asking for help, please try to follow the guidelines in Common Crash Issues [PLEASE READ FIRST].