I bought a house with 30 silver and ask me to buy again my silver went Zero after load game

So, first of all, I just wanted to check what the 30 Silver House looks like.

I bought it and went inside, then I decided to get the 25 silver house.

I loaded the game with my previous save; now my silvers are gone. My 30 silver house ask me to buy it again. Dont have any more save, now i have no house and no money.