Hell, I am a member of the Shadow Crawlers Guild and we have recently purchased a Training hall, there is one problem in that it does not appear in our guild hall as it should. looking back at the guild records it said that we had purchased it yet it still will not show
just send a GM request, they will help
also, did you change the name of the room before the guild hall rebooted? I think thats one of the causes for a room to not work