Fatal error: Uncaught Error: Call to a member function get_cart_contents_count() on null in /var/www/web26388575/html/wordpress/wp-content/plugins/woocommerce-germanized/includes/class-wc-gzd-checkout.php:532 Stack trace: #0 /var/www/web26388575/html/wordpress/wp-includes/class-wp-hook.php(324): WC_GZD_Checkout->prevent_differential_mixed_carts(true, 36, 1) #1 /var/www/web26388575/html/wordpress/wp-includes/plugin.php(205): WP_Hook->apply_filters(true, Array) #2 /var/www/web26388575/html/wordpress/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(840): apply_filters('woocommerce_add...', true, 36, 1) #3 /var/www/web26388575/html/wordpress/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(814): WC_Form_Handler::add_to_cart_handler_simple(36) #4 /var/www/web26388575/html/wordpress/wp-includes/class-wp-hook.php(324): WC_Form_Handler::add_to_cart_action('') #5 /var/www/web26388575/html/wordpress/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #6 /var/www/web26388575/html in /var/www/web26388575/html/wordpress/wp-content/plugins/woocommerce-germanized/includes/class-wc-gzd-checkout.php on line 532