Fatal error: Uncaught Error: Call to undefined function register_block_type() in /kunden/472379_94121/webseiten/redaxo/wordpress/wp-content/plugins/ninja-forms/blocks/bootstrap.php:21 Stack trace: #0 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-includes/class-wp-hook.php(298): Ninja_Forms::{closure}('') #1 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(true, Array) #2 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-settings.php(449): do_action('init') #4 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-config.php(88): require_once('/kunden/472379_...') #5 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-load.php(37): require_once('/kunden/472379_...') #6 /kunden/472379_94121/webseiten/redaxo/wordpress/wp-blog-header.php(13): require_once('/kunden/472379_...') #7 /kunden/472379_94121/webseiten/redaxo/wordpress/index.php(17): require('/kunden/47237 in /kunden/472379_94121/webseiten/redaxo/wordpress/wp-content/plugins/ninja-forms/blocks/bootstrap.php on line 21