All Facebook likes back to zero on every blog post

All posts on my site, theamericanreader.com, now have 0 facebook likes.

http://theamericanreader.com/green-screen-the-lack-of-female-road-narratives-and-why-it-matters/

For example, the post above had ~1.7k facebook likes, but is now showing 0. Any idea what’s going on?