What’s wrong with my car

I have a 2015 Kia optima and I just had new tires put on it 3-4 days ago with a warranty. I was driving today and the back drivers side tire made a popping noise then it started screeching and smoking. When I got out to take a look it looks like something exploded where one of the lug nuts should be. I called the tire place that put the tire on and they’re telling me it sounds like the brake pads. They told me to bring it by so they can look at it but my car was done until I got the tires put on. What seems to be the issue?

I have a 2015 Kia optima and I just had new tires put on it 3-4 days ago with a warranty. I was driving today and the back drivers side tire made a popping noise then it started screeching and smoking. When I got out to take a look it looks like something exploded where one of the lug nuts should be. I called the tire place that put the tire on and they’re telling me it sounds like the brake pads. They told me to bring it by so they can look at it but my car was done until I got the tires put on. What seems to be the issue?