Installation location

Hi,

I bought the membership to this community for the whmcs plugins and I am having a difficult time getting them to work.

My main question, is does the installation of WHMCS has to be uder a subdomain for the plugin to work? The reason I ask this is because after reading a couple of posts in the forums, it seems that this is the case and why some folks were having issues with the plugin.

Are there any work arounds this issue? Any help would be greatly appreciated.

P.S. I did try the plugin using the demo installation mentioned in one of the forums posts and it does work properly when using the setup found here: http://whmcs.wpwhmcs.com/

Link to the post: https://premium.wpmudev.org/forums/topic/nothing-is-showing-up

Best regards,
Sam