Hey, I get this error and a CTD when I enter the zone "The Stygian insenescence cells". My character is then stuck in that zone as the game crashes again when I log in. The only way to get out of there is to travel to another world since that places me in Ul'Dah.

I have already tried the following:
>Restarting my PC
>Restarting my router
>Updating my graphics drivers
>Deleting and reinstalling the game

I need to enter this area to finish the quest "Guided by the Past".
Please help.