Bugged Map - can't complete

You can log in to my account and verify. I marked it on my map as "Bugged - can't complete". I activated a Ritual altar in a narrow hallway. Not sure whether select mobs from the altar spawned somewhere inaccessible, but the altar kill could not be completed and I became stuck in the altar area. Ported to town, ported back, ported back to town...no way to move forward.