Swapped to disc and now horrible scraping Help

These calipers came loaded with pads. Rotirs came pre drilled.All of it came from Scarebird. Though the calipers are different from
Eachh other but pads are the same on each side. I do not understand why this pad is hitting the rotor. And when that pads goes into that groove it stays. I even tried greasing the back of pad where it rubs on the caliper but no change.