I just went to check up on my website at michaelkirschner.wordpress.com and I noticed that my navigation bar at the top of the page was missing. I had been playing around with the custom menu feature a couple of days ago but could not figure out how to use that feature I think that might have something to do with it. Is there a way to restore the navigation back to its previous design, because I don’t remember everything that was there?
I don’t know if this is still relevant, but under Appearance>>Menu, delete the custom menu that you created and your default menus should reappear. (Can’t guarantee this will bring back what there was in the navbar previously; maybe check the cached version of your site on Google?)