You don't need any money. You need at the least one item. Try giving more information on your situation next time.
You actually do need money. Because when I do /ah sell [price] it says "you don't have enough money to auction an item". /auc is gone
So either your person is broken in that world or you are auctioning the item for more than you have? I had something over 5k when I tried to place and item in the auction house.