Can't aquire keystone

Game mode: [Singleplayer]
Problem: [Bug]
Region: [Choasmouth]
I have gather all necessary key items to remove bracelet, but when I put the items in the altar nothing happens. I have Diadem of the Giant-kings, Mask of the Witch Queen, Star of the Champion, Tears of Two Races, and The Shining Trapezohedron.

I know this is way late, but aren’t you missing the Heart of the Sands?