I play on the newest version of Rimworld, without the Royalty DLC, and many mods are red lettered and state in-game that they depend on the Harmony mod. I installed it now, but if its necesarry, you coud just add it to the collection, so you don't have to download Harmony manually.

Three mods say they are for version 1.0, not for 1.1. Is 1.1 not compatible?

Edit: After disabeling these three mods and installing Harmony no more errors occure.
With Harmony and these three mods enabled the game freezes on the world screen after choosing a storyteller and a difficulty.