Fatal error: Uncaught Error: Interface 'SimplePie\Cache\DataCache' not found in D:\xampp\htdocs\main\wp-includes\SimplePie\src\Cache\Psr16.php:19 Stack trace: #0 {main} thrown in D:\xampp\htdocs\main\wp-includes\SimplePie\src\Cache\Psr16.php on line 19