I don't have the loki ring but have the same setup with the provari ring. Give the center pin on the bottom of your russian a half turn counter clockwise. If it doesn't work, give it another half turn. The ring is creating a gap between that pin and the contact on your provari
You might notice that screw getting a little wiggly when you loosen it- I fixed that by adding another rubber o-ring that came with my Russian. Just unscrew that pin all the way out and add the second o-ring (it should have one already on it)