XML Pursing Error

Hello,
I am getting XML Pursing Error

Code:

XML Parsing Error: no element found
Location: http://www.w3.org/2001/03/webdata/xsv?docAddrs=http%3A%2F%2Fwww.xxxxxxxxxxxx.com%2Fsitemap_index.xml.gz&warnings=on&style=xsl
Line Number 1, Column 1:
^

How can I fix it? I am getting this for the sitemap index as well as all the generated sitemaps. sitemap_1.xml.gz, sitemap_2.xml.gz, sitemap_3.xml.gz ....

Here is my sitemap_index.xml.gz

Code:

This XML file does not appear to have any style information associated with it. The document tree is shown below.
      
−
<sitemapindex xsi:schemaLocation="             http://www.sitemaps.org/schemas/sitemap/0.9             http://www.sitemaps.org/schemas/sitemap/09/siteindex.xsd">
−
<sitemap>
<loc>http://www.xxxxxxxxxxxx.com/sitemap_1.xml.gz</loc>
<lastmod>2009-05-17T08:43:40+00:00</lastmod>
</sitemap>
−
<sitemap>
<loc>http://www.xxxxxxxxxxxx.com/sitemap_2.xml.gz</loc>
<lastmod>2009-05-17T08:43:40+00:00</lastmod>
</sitemap>
</sitemapindex>

It seems like w3c validator is curretnyl offline, it doesn't seem to work with any other sitemap as well at the moment.

So,
What can be done now? Is there anything I need to do at my end?

You should submit sitemap to Google to make sure that it's parsed correctly:
https://www.google.com/webmasters/tools/dashboard

Well,
I am getting this error at Google Webmaster Tools. Dashbord>Sitename>Sitemap>Error>Details

It was working fine untill I upgraded to version 2.5 from vbulletin.org

What exactly is the error you get? Also, what is your sitemap URL?

Hey Oleg..
Thanks, Its working now. Don't know what happened, but, it got corrected automatically.