Fatal error: Uncaught Error: Call to undefined function post_class() in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\theme-compat\embed-content.php:13 Stack trace: #0 {main} thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\theme-compat\embed-content.php on line 13