Fatal error: Access level to Gutenberg_REST_Global_Styles_Controller_6_2::validate_custom_css() must be protected (as in class WP_REST_Global_Styles_Controller) or weaker in /home/customer/www/oppurelibri.it/public_html/wp-content/plugins/gutenberg/lib/compat/wordpress-6.2/class-gutenberg-rest-global-styles-controller-6-2.php on line 217