HELP Game crashes after talking to Sorine Jurard

[QuestorWI]

I am doing the second of the Dawnguard side of the quest which sends me out to talk to two of Isram's friends as it were. I talked to the guy and killed the bear and his part of the quest completes but when I talk to Sorine when all the dialog is complete the game crashes and I end up at the save point I made before I talked to her when I restart the game.

[QuestorWI]

Well after I tured off all of my mods lost all of the armor, weapons, books and a ton of other items in the Dov wearhouse and bedroom the damn quest completed