How do I teleport betweem worlds?

[Kenny-Tan]

I resently reset a server that I didn't wanne reset after I looked at what it was before, but the worlds that were there besides the normal overworld are still in the folders, so I wanne know how to tp there, as the normal command (/world ul_{Name}) does not work anymore. (The whole /world command is just gone)

[_Tarna_]

Those commands were part of the playerserver plugin which has been removed. You need to use plugins such as Multiverse to be able to teleport between worlds.