Fatal error: Uncaught Error: Call to undefined function add_action() in /var/www/html/olympiads/wp-content/plugins-tmp-06-2023/gutenberg/lib/compat/plugin/edit-site-routes-backwards-compat.php:34 Stack trace: #0 {main} thrown in /var/www/html/olympiads/wp-content/plugins-tmp-06-2023/gutenberg/lib/compat/plugin/edit-site-routes-backwards-compat.php on line 34