It seems I have fixed the problem myself. Just need to add Factorio World as a dependency to Cargo Ships so it loads after Factorio World.
For those with the same problem:
Add (In Info.json),
"factorio-world >= 0.16.1"
So afterwards Cargo Ships' dependencies should read:
"dependencies": ["base >= 0.16", "factorio-world >= 0.16.1"],