Fatal error: Uncaught Error: Call to undefined function add_action() in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/global-styles-and-settings.php:370 Stack trace: #0 {main} thrown in /home10/amoutsei/public_html/wp-content/plugins/gutenberg/lib/global-styles-and-settings.php on line 370