My nav bar is doubled. How can I get rid of the second one?

It seems that I have 2 nav bars for some reason. I've tried hiding one but that doesn't work. I've gone into settings and poked around trying to see what the issue is, but I can't discover what made the second nav bar pop up. Is there some way to get rid of it? A Google search didn't help at all.

Welcome to the forums. What device do you have? Can you post a screenshot so we can have a better idea of what's going on?