Google Webmaster Tools Errors

Hi,

I’m getting these errors.

Errors
Missing XML tag
This required tag is missing. Please add it and resubmit.

Sitemap: http://www.pointquack.com/portfolio_executor_profile-sitemap.xml
Parent tag: urlset
Tag: url

Sitemap: http://www.pointquack.com/portfolio_technologies-sitemap.xml
Parent tag: urlset
Tag: url

Thanks.

https://wordpress.org/plugins/wordpress-seo/