There is a 1 to 2 inch gap on one side of my deck between the bandboard and the house. You can see the bolt that is not secured. It is only one bolt. Is it possible to push it back in to remove the gap? If not, is there anything that can be done to make sure the deck is secure?
Thanks!

You only have one bolt holding the deck to your house? The deck should be able to be drawn back towards the house, but you should certainly add more bolts. Provide more details on the deck size and whether joists are supported on hangers or a ledge board. By bandboard, I assume you mean the deck structure to which joists are attached, that is supposted to be attached to the house rim-joist. Correct me if I'm wrong.