Fatal error: Uncaught Error: Call to undefined function feed_content_type() in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\feed-rss2-comments.php:8 Stack trace: #0 {main} thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\feed-rss2-comments.php on line 8