Fatal error: Uncaught Error: Call to a member function get_id() on bool in /home/customer/www/my.viehotelbangkok.com/public_html/wp-content/plugins/woocommerce-pdf-product-vouchers/src/class-wc-pdf-product-vouchers-cart.php:246 Stack trace: #0 /home/customer/www/my.viehotelbangkok.com/public_html/wp-includes/class-wp-hook.php(309): WC_PDF_Product_Vouchers_Cart->add_cart_item_voucher_data(Array, 6668, 0) #1 /home/customer/www/my.viehotelbangkok.com/public_html/wp-includes/plugin.php(191): WP_Hook->apply_filters(Array, Array) #2 /home/customer/www/my.viehotelbangkok.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart.php(1138): apply_filters('woocommerce_add...', Array, 6668, 0, 1) #3 /home/customer/www/my.viehotelbangkok.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(824): WC_Cart->add_to_cart(6668, 1) #4 /home/customer/www/my.viehotelbangkok.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(796): WC_Form_Handler::add_to_cart_handler_simpl in /home/customer/www/my.viehotelbangkok.com/public_html/wp-content/plugins/woocommerce-pdf-product-vouchers/src/class-wc-pdf-product-vouchers-cart.php on line 246