Message reads:
Failed to load mods: Error while running setup for entity prototype "solar-panel" (solar-panel): next_upgrade target (el_solar_entity) must have the same bounding box.
The suggested mods to remove were not updated recently, so I had to go through all the ones that were. It was this mod. I didn't know you modified solar panels? But disabling this mod fixes the issue.

PostScript: The mods it suggests removing were: Krastorio2, Coombat-mechanics-overhaul, 248k-redux, and squeak-through. It's possible that an incompatibility was introduced somehow.

The change in Cargo Ships was to add a dependency on Space Exploration. If you have Space Exploration installed, that could change the loading order of other mods. If they do not perform changes or copy existing prototypes in the proper phase, this could trigger the error you see. There is nothing I can do to fix that. Almost certainly it is 248k that needs to change something. You can post a log file with and without Cargo Ships enabled to show what changed in the mod loading order.

I'll certainly do that. Um, how do I get the log file?

Search for factorio-current.log, see https://wiki.factorio.com/Application_directory#User_data_directory

Thank you.