An error occured

[services_advertise]

Sitemap Generator been working good
now not working on all my sites it is coming up with this 

An error occured
There was an error while retrieving the URL specified: [ External links are visible to forum administrators only ]
HTTP Code:

HTTP headers:

HTTP output:

[XML-Sitemaps Support]

Hello,

please let me know your generator URL/login in private message to check this.