Ah yes, I guess some maps sadly aren't destined to work. Although that one does have nice soundtracks. Oh well. Does anyone know how to remove the portal? Or preferably, everything that came with the map when I downloaded it?
Your best chance floof, which is what I had to do, is to go to your exports and delete everything from the download. However, leave things like Default.fho and MyTrees.fho etc, or else you'll just run in to more problems. I opened the download's export folder for the names of the items I needed to delete, and did so in my own exports folder. Often I don't worry about little things like soundtracks or textures, those aren't a big deal. If you wanted to make it easier on yourself tho, just delete Fallout.fhm from your exports and the portal will disappear, and you can worry about the other things later.