Fatal error: Uncaught Error: Call to undefined function register_block_type() in /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-content/plugins/ninja-forms/blocks/bootstrap.php:21 Stack trace: #0 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-includes/class-wp-hook.php(286): Ninja_Forms::{closure}('') #1 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(true, Array) #2 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-settings.php(450): do_action('init') #4 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-config.php(179): require_once('/web/htdocs/www...') #5 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-load.php(37): require_once('/web/htdocs/www...') #6 /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-blog-header.php(13): require_once('/web in /web/htdocs/www.investigatore-privato-busto-arsizio.com/home/wp-content/plugins/ninja-forms/blocks/bootstrap.php on line 21