Fatal error: Uncaught Error: Call to undefined function add_action() in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/experimental/rest-api-overrides.php:52 Stack trace: #0 {main} thrown in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/experimental/rest-api-overrides.php on line 52