Fatal error: Uncaught Error: Class 'WP_HTML_Tag_Processor' not found in C:\xampp\htdocs\wordpress\wp-includes\html-api\class-wp-html-processor.php:131 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wordpress\wp-includes\html-api\class-wp-html-processor.php on line 131