Links don't work on whmcs integration plugin

i Have just installed the WHMCS on a multisite -subdomain website, and i think i have installed correct but i guess i wouldn't be here if i did…lol..

my site is call – i plan on moving my domain to this subsite if i can get it to function.. im new to WHMCS and i have that up and running from a hostgator reseller account to be cost effective until i have enough client to move to a dedicated server.. but anyway.. When i click the links on the page that i integrated this plugin on. The links are dead… well not dead they just don't take me anywhere link logging in or client area.. downloads anywhere really… can some on please explain to me were i could have possibly gone wrong.. please

i have granted support access and included screenshots of both the plugin setting and the WHMCS settings