Fatal error: Uncaught Error: Call to undefined function is_cart() in /var/www/web2905/html/shop/wp-content/plugins/woocommerce-germanized-x/includes/class-wc-gzd-checkout.php:188 Stack trace: #0 /var/www/web2905/html/shop/wp-includes/class-wp-hook.php(308): WC_GZD_Checkout->maybe_remove_shopmark_filters('') #1 /var/www/web2905/html/shop/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #2 /var/www/web2905/html/shop/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /var/www/web2905/html/shop/wp-includes/template-loader.php(13): do_action('template_redire...') #4 /var/www/web2905/html/shop/wp-blog-header.php(19): require_once('/var/www/web290...') #5 /var/www/web2905/html/shop/index.php(17): require('/var/www/web290...') #6 {main} thrown in /var/www/web2905/html/shop/wp-content/plugins/woocommerce-germanized-x/includes/class-wc-gzd-checkout.php on line 188