Like Button Not Working

The plugin was working fine but all of a sudden it stopped working. I have it on a site that is under construction so I just noticed this issue when I clicked on the Like button and it showed the number and then went away, so it was never “liked”.

The regular iframe code isn’t working either so maybe it’s a Facebook issue? I’ve also tested other plugins similar to this one and they are also failing.

http://wordpress.org/extend/plugins/like/