On the rivets around the nose cone, when using my array modifier, my rivets are either going straight down in a lone along...

On the rivets around the nose cone, when using my array modifier, my rivets are either going straight down in a lone along the z-axis or they are stacking in the middle of my Rivet Empty. I thought I followed the video exactly, and I don't know at all what is going wrong. Anything I can do to fix the problem?