Title: Error when adding a bundle to the cart Last modified: March 4, 2022 --- # Error when adding a bundle to the cart * [michielpopmp](https://wordpress.org/support/users/michielpopmp/) * (@michielpopmp) * [4 years, 2 months ago](https://wordpress.org/support/topic/error-when-adding-a-bundle-to-the-cart/) * Hello, * Unfortunately I am having a trouble when adding a bundle to my cart. When I add the bundle to the cart, it says “A critical error has occurred on this site”, while the product has been added to the cart when I refresh the webshop. * I am using version 6.0.7 of your plug-in and version 5.9.1 of WordPress. * Could you help me please? * Thanks in advance! * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-when-adding-a-bundle-to-the-cart%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 3 replies - 1 through 3 (of 3 total) * [chitny](https://wordpress.org/support/users/chitny/) * (@chitny) * [4 years, 2 months ago](https://wordpress.org/support/topic/error-when-adding-a-bundle-to-the-cart/#post-15435861) * i got exactly the same problem in two sites after upgrading wordpress and the plugin version… I cant find how to fix it. * [svdv1975](https://wordpress.org/support/users/svdv1975/) * (@svdv1975) * [4 years, 1 month ago](https://wordpress.org/support/topic/error-when-adding-a-bundle-to-the-cart/#post-15446557) * #metoo 🙁 * Just paid and installed all and ran into the same issue. Hope its solved fast or I’ll have a refund. * Fatal error: Uncaught Error: Call to a member function get_stock_managed_by_id() on null in /home/customer/www/…./public_html/wp-content/plugins/woocommerce/includes/ class-wc-cart.php:689 Stack trace: #0 /home/customer/www/…./public_html/wp-content/ plugins/woocommerce/includes/class-wc-cart.php(1218): WC_Cart->get_cart_item_quantities()# 1 /home/customer/www/…./public_html/wp-content/plugins/woo-product-bundle-premium/ includes/class-woosb.php(1377): WC_Cart->add_to_cart(10359, 1, 10584, Array, Array) #2 /home/customer/www/…./public_html/wp-content/plugins/woo-product-bundle- premium/includes/class-woosb.php(1297): WPCleverWoosb->woosb_add_to_cart_items( Array, ‘d532174e5ec4514…’, 11850, 1) #3 /home/customer/www/…./public_html/wp- includes/class-wp-hook.php(307): WPCleverWoosb->woosb_add_to_cart(‘d532174e5ec4514…’, 11850, 1, 0, Array, Array) #4 /home/customer/www/…./public_html/wp-includes/class- wp-hook. in /home/customer/www/…./public_html/wp-content/plugins/woocommerce/ includes/class-wc-cart.php on line 689 There has been a critical error on this website. * Learn more about troubleshooting WordPress. * Plugin Support [Janilyn T](https://wordpress.org/support/users/janilyn409/) * (@janilyn409) * [4 years, 1 month ago](https://wordpress.org/support/topic/error-when-adding-a-bundle-to-the-cart/#post-15448064) * Hi [@svdv1975](https://wordpress.org/support/users/svdv1975/) , [@chitny](https://wordpress.org/support/users/chitny/), [@michielpopmp](https://wordpress.org/support/users/michielpopmp/) , * Thanks for reporting this issue to us. * You can kindly contact our developer at our Support Forum to get help on this issue at [https://wpc.ticksy.com/](https://wpc.ticksy.com/). Please submit a ticket with a link to your published bundle for us to help you check it out. * We might need access to the backend admin area to investigate further on this issue. * Best regards. Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Error when adding a bundle to the cart’ is closed to new replies. * ![](https://ps.w.org/woo-product-bundle/assets/icon-128x128.png?rev=1857793) * [WPC Product Bundles for WooCommerce](https://wordpress.org/plugins/woo-product-bundle/) * [Support Threads](https://wordpress.org/support/plugin/woo-product-bundle/) * [Active Topics](https://wordpress.org/support/plugin/woo-product-bundle/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woo-product-bundle/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woo-product-bundle/reviews/) * 3 replies * 4 participants * Last reply from: [Janilyn T](https://wordpress.org/support/users/janilyn409/) * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/error-when-adding-a-bundle-to-the-cart/#post-15448064) * Status: not resolved