I broke something in my vacuum.. Help needed?

So I was vacuuming using my hose and I had the vacuum set on a small shag rug standing straight up. Well the vacuum started to smell like burning rubber and there was some smoke/steam coming from the bottom. I checked and the thing that rolls to pick up stuff isn’t moving anymore. What could I have done to my vacuum? I’m hoping It is just a belt. Any help is appreciated! Thanks!