Warning: require_once(includes/db_connect.php): Failed to open stream: No such file or directory in /app/pdf/index.php on line 2

Fatal error: Uncaught Error: Failed opening required 'includes/db_connect.php' (include_path='.:/usr/local/lib/php') in /app/pdf/index.php:2 Stack trace: #0 {main} thrown in /app/pdf/index.php on line 2