Fatal error: Uncaught Error: Call to a member function execute() on bool in /var/www/app/model/UserReferrals.php:96 Stack trace: #0 /var/www/app/api/Dashboard.php(489): Homeshake\Data\UserReferrals::getReferralStats() #1 /var/www/app/api/Dashboard.php(61): Dashboard->dashboard_referrals() #2 /var/www/app/api/Dashboard.php(505): Dashboard->__construct() #3 /var/www/app/public/www/index.php(75): require_once('/var/www/app/ap...') #4 {main} thrown in /var/www/app/model/UserReferrals.php on line 96