If it's the location I'm thinking of there is a chest in the center. If you stand on the pressure plate you should see items in front of the statues. In the central chest there is an item and if you place it in a chest by a statue it disappears and another items appears in the central chest. If you put the item in the correct chest in front of a statue it will position the statue. Once all statues are positioned correctly you can proceed.
Additionally
Spoiler
to find the correct chest look at what appears in front of each statue.