Warning: require_once(./BSO/bso_config.php): Failed to open stream: No such file or directory in /var/www/html/admin.php on line 5

Fatal error: Uncaught Error: Failed opening required './BSO/bso_config.php' (include_path='.:/usr/local/lib/php') in /var/www/html/admin.php:5 Stack trace: #0 {main} thrown in /var/www/html/admin.php on line 5