When I first entered Twilight Sepulcher I had no issues going into Pilgrim's Path. However, I found that the enemies were too difficult at the time, and left to level up a bit before attempting again. After leveling up a couple levels, I activated the quest in my journal but the map indicator won't work (I made sure no other quests were selected as active). I remembered where to go regardless and upon trying to enter Pilgrim's Path - the door is sealed and I cannot enter. I have asked gallus every question possible and retrieved the Nystrom journal and read the thing. My Journal did update with having retrieved the guy's journal but I am still unable to proceed through the door.

Please help! I am 10-20 hours of gameplay beyond my last attempt at this quest so going back to a previous save is out of the question.