SOFTACULOUS WHMCS auto install module does not support CWP panel , SOFTACULOUS
because CWP has not provided us API how we can login to their panel using PHP and perform the installation.
Only if we get such API from CWP team we can make this module compatible with CWP.
Erh.
I used Softaculous on CentOS 7 with CWP to install WHMCS initially.
Only probably I had, is the Free version of Softaculous wouldn't install it, you had to have the Paid version of Softaculous.
I even have Softaculous running on CWPpro 0.9.8.1025 and CentOS 8.
No problems. Enabled it under Script Installers.