Fatal error: Uncaught Exception: Vendor autoload is not found. Please run 'composer install' under application root directory. in /home/jn2/www/boost/app/autoload.php:46 Stack trace: #0 /home/jn2/www/boost/app/bootstrap.php(44): require_once() #1 /home/jn2/www/boost/pub/get.php(20): require('...') #2 {main} thrown in /home/jn2/www/boost/app/autoload.php on line 46