Fatal error: Uncaught Error: Class "WP_HTML_Tag_Processor" not found in C:\xampp\htdocs\Learn\wp-includes\interactivity-api\class-wp-interactivity-api-directives-processor.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Learn\wp-includes\interactivity-api\class-wp-interactivity-api-directives-processor.php on line 18