Warning: require_once(/var/www/vendor/composer/autoload_real.php): Failed to open stream: No such file or directory in /var/www/vendor/autoload.php on line 10

Fatal error: Uncaught Error: Failed opening required '/var/www/vendor/composer/autoload_real.php' (include_path='.:/usr/local/lib/php') in /var/www/vendor/autoload.php:10 Stack trace: #0 /var/www/vendor/autoload_runtime.php(5): require_once() #1 /var/www/public/index.php(5): require_once('/var/www/vendor...') #2 {main} thrown in /var/www/vendor/autoload.php on line 10