Link On Facebook Shows Blank

My blog, http://www.316apps.com/ipreachers blog is having some issues right now. If I post the article:

http://316apps.com/ipreachersblog/2014/08/20/toss-a-pigskin-flip-a-bird-scissor-kick-a-fan/

to facebook, it shows a blank preview, while if I post this article:

http://316apps.com/ipreachersblog/2014/08/18/facebook-messenger-are-they-watching-you/

Everything works fine.