[Plugin: Google XML Sitemaps] Unsuccessful submission to Ask

When I submit my sitemap through this plugin I get the following:

Ping Test

Trying to ping: http://submissions.ask.com/ping?sitemap=http%3A%2F%2Fwww.africanodysseysafaris.com%2Fsitemap.xml.gz. The sections below should give you an idea whats going on.
Errors, Warnings, Notices:

Notice: WP HTTP API Web Request failed: Couldn’t resolve host ‘submissions.ask.com’ in /home/african/public_html/wp-content/plugins/google-sitemap-generator/sitemap-core.php on line 2364
Result (text only):
Result (HTML):

http://wordpress.org/extend/plugins/google-sitemap-generator/