Validate Error

I am getting this problem. why is this invalid mark up?
http://validator.w3.org/check?uri=http://www.toptenzilla.comoptenzilla.com

*Line 81, Column 301*: Attribute itemprop not allowed on element meta at
this point.

Here's the link
http://toptenzilla.com
let me know how to sort this out.

Received on Monday, 30 March 2015 05:28:47 UTC