facebook widget not showing

we instaleed this plugin 5 days ago and configured it with a facebook app and it was working fine, and now its not showing at all.
americanmoving.wpengine.com
you can see scrolled down on right there is pink header that says Like Us On Facebook. it was showing below that but now its not. in admin, I can see it looks successful.

if I insepct the page i see a message:
Refused to display ‘https://www.facebook.com/checkpoint/block/’ in a frame because it set ‘X-Frame-Options’ to ‘DENY’.

thanks