Fatal error: Uncaught Exception: Vendor autoload is not found. Please run 'composer install' under application root directory. in /www/wwwroot/nihaomagento/app/autoload.php:35 Stack trace: #0 /www/wwwroot/nihaomagento/app/bootstrap.php(33): require_once() #1 /www/wwwroot/nihaomagento/pub/static.php(9): require('/www/wwwroot/ni...') #2 {main} thrown in /www/wwwroot/nihaomagento/app/autoload.php on line 35