hatom errors

I am getting hatom error for a long time on my google webmaster for my website http://www.aaashi.com

I have attached the screenshot of the error page, can you please let me know if the error will disappear automatically or I have to do anything else apart from installing the plugin.

screenshot attached

Await your reply.

Regards,
Ajit