Multiverse: Error while trying to load world

Hey, i cant seem to load this one world in multiverse, even though i know the world file is there. I didnt create the world in multiverse. I just have multiverse core installed. I tried restarting the server a couple times so multiverse knew it was there, but it doesnt seem to work.
I tried /mv load worldname.

 

./mvimport worldname worldtype
replace worldtype with... normal OR nether OR end

 

What i did is, i deleted the worlds file in the multiverse folder. And when you run your server it will load all your worlds. Hope that helped.

 

/mv import (world name) (world type)

The world might not work with the import, I am having problems with multiverse as well. When I import worlds, it loads a completely different world.

 

I have the same sort of issue but I can't do /mv import or /mv load