Download Original WHMCS VERSION 8.8.0 -- https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.8.0-release.1.zip
Version date : V8.8 latest
How to Use WHMCS license :
Download License.php file from https://tremhost.com/clientarea/dl.php?type=d&id=2
and replace it with YOUR-WHMCS-PATH/vendor/whmcs/whmcs-foundation/lib/License.php