Gravatar Not Working After Update

After Updating W3 total cache to latest version, Gravatar on my blog is not working and even Image is out of place.
It was working fine just before the update. Also I don’t use any author box plugin. Image Link

Here is the link to screenshot of Author Box
and blog address is ebuzznet.com

https://www.ads-software.com/extend/plugins/w3-total-cache/