I've checked the latest logs for your Factorio server (mad town), and it's encountering a specific script error during the mod initialization phase that is causing the crash:
Error: Error while running setup for entity prototype "outer-rim-stationary-platform" (roboport): next_upgrade can't be set when flag 'not-upgradable' is set.
This error is coming from the Outer Rim mod. It appears there is a conflict or a bug within that mod (or a conflict with Enhanced Map Colors 2.0 Reupload, Cloud City, or PlanetsLib) where it's trying to assign an upgrade path to an item that isn't allowed to be upgraded.
