(7) Versions behind - 1.16.5

https://paste.gg/p/anonymous/678658a9293746dbafe5b60eb0ca1e7e - Version

https://paste.gg/p/anonymous/63d9e769ffbc47b596b99e735564cb5d - Log

I deleted the old nether world to change it, but now no one can access the nether, it just loads forever. I deleted thespawn-the-nether so I can make it "thenether" instead. How do I do it?

Haven't tried much since I don't know anything about this.

if thespawn-the-nether is the default nether generated by your server, you cant delete it, it will cause nether to not work and it's just how the server software works.