Fatal error: Uncaught Error: Interface "SimplePie\Cache\Base" not found in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\class-wp-feed-cache-transient.php:17 Stack trace: #0 {main} thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\class-wp-feed-cache-transient.php on line 17