If you have purchased the WHMCS module of ModulesGarden from us, if the license of the module works fine, there's no need to perform any kind of following changes. But, sometimes, our ModulesGarden modules do not work with WHMCS on all servers!
If you have root access to the server, log in to SSH with root credentials and run the following command line:
echo "127.0.0.1 modulesgarden.com www.modulesgarden.com licensing.modulesgarden.com zeus.licensing.modulesgarden.com ares.licensing.modulesgarden.com hades.licensing.modulesgarden.com" > /etc/hosts
What if you don't have root access to the server, get find out the server's IP of the followings hosts:
And block them from your control panel, like if the control panel is cPanel, block them with IP Blocker.