Fatal error: Uncaught Error: Call to undefined function register_block_type() in /var/www/rejsespion.dk/public_html/wp-content/plugins/wordpress-seo/src/integrations/blocks/structured-data-blocks.php:90 Stack trace: #0 /var/www/rejsespion.dk/public_html/wp-content/plugins/wordpress-seo/src/integrations/blocks/structured-data-blocks.php(72): Yoast\WP\SEO\Integrations\Blocks\Structured_Data_Blocks->register_blocks() #1 /var/www/rejsespion.dk/public_html/wp-content/plugins/wordpress-seo/src/loader.php(218): Yoast\WP\SEO\Integrations\Blocks\Structured_Data_Blocks->register_hooks() #2 /var/www/rejsespion.dk/public_html/wp-includes/class-wp-hook.php(286): Yoast\WP\SEO\Loader->load_integrations('') #3 /var/www/rejsespion.dk/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #4 /var/www/rejsespion.dk/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /var/www/rejsespion.dk/public_html/wp-settings.php(450): do_action('init') #6 /var/www/rejsespion.dk/public_html/wp-config.php(100 in /var/www/rejsespion.dk/public_html/wp-content/plugins/wordpress-seo/src/integrations/blocks/structured-data-blocks.php on line 90