Cannot Load World

Hey everyone. I recently encountered an issue today that is making it so that my game won't load the world. I can log in, select start at the title screen, and click on my character, but when the game starts loading, it crashes. I have never had the game crash before and it first occurred today right after i completed one of the Hildebrand Quests (the one where you collect the vase for Maria). Everything else works though, so I do not know what could be causing this. Any ideas? your help is greatly appreciated.