I launched this site, http://davidaellis.me/, a couple of months ago. It was working fine when I launched it. Tonight, the client told me the site is broken, so I went to check it out.
The admin bar seems to have a broken link in it - see where it says "Edit/a>"? I don't know how to fix this as it seems to be part of the admin bar and not the theme I created. But it is affecting the way the site works because none of the navigation links now seem to work.