22.145 Error ModManager.cpp:1024: Error while loading item prototype "a-chromium-ore-bee" (item): Key "icon" not found in property tree at ROOT.item.a-chromium-ore-bee
Modifications: NPBees Redux

Any idea that cause the issue?

What mod adds chromium?

I believe from Dyworld

Okay, I'll go fix this

Alright, it loads now.
I don't really get the balance of that mod, so I only went as far as putting a bee for each ore. No fancy tech or special recipes yet. I guess you could help with this if you want.