I'm trying to add in a new biome/planet, and I think I have everything that I need added in to make it different at least on the starmap/while you're on the ship. But whenever I try to load a planet in a system in the alpha sector (because I temporarily changed it so it would only spawn planets of my new biome) it throws the error in the title and crashes. I'm nearly 100% confident that I've added in everything that the other planets have (I have a list if it's needed), so I have no idea what could be going wrong here. Does anyone have any suggestions?