I hope this is an easy fix...
I enabled sitemaps in the Yoast SEO plugin and successfully submitted the "sitemap_index.xml" sitemap. When I drill down into the site map these sitemaps have been submitted successfully:
/category-sitemap.xml /post-sitemap.xml /category-sitemap.xml
However, the "/page-sitemap.xml" sitemap has an "X" on it with the following error:
Invalid URL This is not a valid URL. Please correct it and resubmit.
Google also reports this information as well:
URL: http:// Parent tag: url Tag: loc Problem detected on: Aug 5, 2011
The weird thing is that Webmaster Tools reports that 33 URLs have been submitted via the "page-sitemap.xml".
Everything looks fine when I browse directly to the sitemap... Here's the URL:
Not sure what to do :)