This is a connection error because your website running with HTTPS:// but with SystemURL in WHMCS admin side you have entered it like HTTP:// so when you are access console that time it ask you for insecure connection and after that it show this error "Vmwarephp\Exception\InvalidVhost: Vhost Host cannot be empty! in /home/*****/public_html/modules/servers/vmware/vmwarephp/library/Vmwarephp/Vhost.php:50".
To fix this error login as your WHMCS admin >> Go to Settings >> System Settings >> General Settings >> General tab. Here you can see "WHMCS System URL". Update it with https://yourwhmcswebsite.com and after that refresh product detail page with clientarea and reopen the console and check it.
If console showing black screen or an error something then follow this link to fix it.
