Oh I see, It shows up like that because you’re missing a featured image on one of the posts. It appears to be this post – http://collective.thomasvillearts.org/moonlight-over-georgia/
Once you upload a featured image it should return back to normal.
Also, I’m really loving your site by the way! Adding in those quality pictures really makes it look awesome! I will definitely add this to the theme showcase if you’re interested.