It looks like it has also disappeared from the drop down menu.  That's a lot of bugs with rooms lately.

I checked it out, and all of the items that had been in my north pole room were in my loft, according to the "My Things" pages, though they weren't really there. To fix this, move the items you know were in the north pole room into the attic and then move them back to the loft. They should re-appear and you can send them wherever you would like from that point.

This, of course, only works if you remember what was in your north pole room. And of course, this should only be a quick fix, because hopefully this situation will be fixed soon.