Warning: require_once(/var/www/html/bootstrap/app.php): failed to open stream: No such file or directory in /var/www/html/public/index.php on line 38

Fatal error: require_once(): Failed opening required '/var/www/html/public/../bootstrap/app.php' (include_path='.:/usr/local/lib/php') in /var/www/html/public/index.php on line 38