Error - Domain mapping

Hi support,

I got following error in admin dashboard
Warning: parse_url(http:///) [function.parse-url]: Unable to parse URL in /home/something/public_html/wp-content/plugins/domain-mapping/classes/class.domainmap.php on line 586

This error appears after upgrade to WP 3.5 and Domain mapping 3.1.6.
Please kindly help.

thanks