Getting There was an error while retrieving the URL specified,

[ankit2]

I get error when generating sitemap with https in url. I got url as following.

An error occured
There was an error while retrieving the URL specified:
HTTP Code:

HTTP headers:
x_csize: 0

HTTP output:

Please suggest solution.

[XML-Sitemaps Support]

Probably there is a configuration problem - it looks like your server doesn't allow local network connections via port 80 (http) or 443 (https) - as a result sitemap generator is not able to crawl the site. This is usually related to firewall installed at the host - could you please contact your hosting support regarding this?