Board Thread:Modded Server Technical Support/@comment-31871987-20170722213412/@comment-27219153-20170722233122

You might have to rename DIM100 to "MiddleEarth" and DIM101 to "Utumno". Also, check to make sure that you don't have the nether disabled in server.properties.

About player data, there is LOTR player data and normal player data. The LOTR player data stores all your LOTR stuff and the normal stores the stuff it normally would.