whmcs integration is not working

So I tried setting up this integration but getting the following error.

* WHMCS Integration: A valid URL was not provided.

The whmcs installation is on a subdomain whmcs.weblinepro.com

The wordpress is installed on weblinepro.com

here is my settings
* whmcs: http://screencast.com/t/aFNsY5e94G

* wordpress: http://screencast.com/t/uPR3Tq3MTZc