Fatal error: Uncaught Error: Call to undefined function add_action() in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/compat/wordpress-6.8/site-preview.php:19 Stack trace: #0 {main} thrown in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/compat/wordpress-6.8/site-preview.php on line 19