[Im really tired of this stuff]

i have been searching for like 1 hour already, where is the option to make the server 1.16.5 only or whatever it was?

 

[how to make permissions like Admin, Owner, Moderator]

I dont know, maybe you could try to find the help on

https://www.youtube.com/channel/UC3pD8Ghxh7nAhpnhkClCuHg

[Removed world]

So recently i started a new server, and i made a mistake on a world so i did /mv remove (world name) and it removed the world, but when i tried to make a new on it said:

A Folder/World already exists with this name!  If you are confident it is a world you can import with /mvimport

So i tried to delete it with /mv delete Spawn but it said:

World Spawn could NOT be deleted!

And i cant make a new world cause of that. Could anyone tell me how to delete it?