With Gravatar.com being down at the moment, all the Gravatars on this site wern’t showing up. However, an easy way to fix this is to use the IP address instead of the domain name, as the server is still running, and just the domain’s expired.
Just change the
gravatar.com reference in the plug-in to
184.108.40.206, and it all works fine and dandy. I’ve made the updated version of the plugin avaliable for download.
Update: seems the domain’s back up.