Warning: include(config/config.php): failed to open stream: No such file or directory in /var/www/html/index.php on line 3

Warning: include(): Failed opening 'config/config.php' for inclusion (include_path='.:/usr/local/lib/php') in /var/www/html/index.php on line 3

Fatal error: Uncaught Error: Class 'Application' not found in /var/www/html/index.php:4 Stack trace: #0 {main} thrown in /var/www/html/index.php on line 4