DLC bug ?

[Feo]

I got Legendary Edition, all DLC content, and i was enjoing every bit of it. Today morning i decided to start Dawnguard story, but i noticed 2 things. 1st - my Hearthfire dissapeard from "Data Files", 2nd - after refusing lord harkon at the beginning of Dawnguard he is banishing me from the castle and ... the end. Nothing happens, im not getting the quest to get to fort Dawnguard or w/e... Whats up with that ? I