Ultimate Faecbook: Comments Not Showing on Posts

I've installed, activated and configured the Ultimate Facebook plugin, set up my FB app, etc and I have the greenlight and everything seems like it SHOULD work, but there is no FB commenting box under my posts. I tried checking the box to show both, then to have FB override WP comments, and neither worked.

Here's a post: http://momprepares.com/relaxing-essential-oils-for-anxiety-and-stress-relief/