The following errors were found : Required PHP version greater than equal to 5.4.0 AND found version is : 5.3.29
Solution :1. Modify the file where softaculous is installed on the server –/usr/local/cpanel/whostmgr/docroot/cgi/softaculous/enduser/hooks/pre_install.php
global $soft, $software, $globals;
// Your Code to Identify the PHP version
$version = phpversion();
Give a try to re-install prestashop via Softaculous and this should work for you.