I have a bunch of datapacks that add new world generation in the game. When starting up my server it doesn't load up. I have tried the spigot plugin Custom Dimension Loader, but it's only for 1.16. People say that it's fixed in 1.17, but it isn't the case for me. I would love to send a pastebin, but it gives me a message that it has explicit content so I provided a screenshot.

btw I also saw something related to changing the world type somewhere, but I couldn't quite figure out what to do. That may be a solution here. If so can someone please explain how to change it/where. The post I am talking about here is this one https://hub.spigotmc.org/jira/browse/SPIGOT-6523 .