Fatal error: Uncaught Exception: Vendor autoload is not found. Please run 'composer install' under application root directory. in /home/ahmarket/public_html/app/autoload.php:35 Stack trace: #0 /home/ahmarket/public_html/app/bootstrap.php(33): require_once() #1 /home/ahmarket/public_html/custom-api/coupon-apply.php(9): require('/home/ahmarket/...') #2 {main} thrown in /home/ahmarket/public_html/app/autoload.php on line 35