Warning: require_once(/var/www/html/data/conf.php): Failed to open stream: No such file or directory in /var/www/html/index.php on line 33

Fatal error: Uncaught Error: Failed opening required '/var/www/html/data/conf.php' (include_path='.:/usr/share/php') in /var/www/html/index.php:33 Stack trace: #0 {main} thrown in /var/www/html/index.php on line 33