Title: Fatal errors
Last modified: February 28, 2019

---

# Fatal errors

 *  [bheadrick](https://wordpress.org/support/users/bheadrick/)
 * (@bheadrick)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/fatal-errors-54/)
 * I’m seeing some sporadic fatal errors when quantities are updated:
 * [26-Feb-2019 01:34:03 UTC] PHP Fatal error: Uncaught Error: Call to a member 
   function get_tax_class() on null in /home/s1/html/wp-content/plugins/woocommerce/
   includes/class-wc-cart-totals.php:230
    Stack trace: #0 /home/s1/html/wp-content/
   plugins/woocommerce/includes/class-wc-cart-totals.php(637): WC_Cart_Totals->get_items_from_cart()#
   1 /home/s1/html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.
   php(140): WC_Cart_Totals->calculate_item_totals() #2 /home/s1/html/wp-content/
   plugins/woocommerce/includes/class-wc-cart-totals.php(131): WC_Cart_Totals->calculate()#
   3 /home/s1/html/wp-content/plugins/woocommerce/includes/class-wc-cart.php(1210):
   WC_Cart_Totals->__construct(Object(WC_Cart)) #4 /home/s1/html/wp-content/plugins/
   woocommerce/includes/class-wc-cart.php(1179): WC_Cart->calculate_totals() #5 /
   home/s1/html/wp-content/plugins/woocommerce-side-cart-premium/public/class-xoo-
   wsc-cart-data.php(140): WC_Cart->set_quantity(‘f1ce35565a1e7cc…’, ‘1’) #6 /home/
   s1/html/wp-includes/class-wp-hook.php(286): xoo_wsc_Cart_Data->update_cart_ajax(”)#
   7 in /home/s1/html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.
   php on line 230

The topic ‘Fatal errors’ is closed to new replies.

 * ![](https://ps.w.org/side-cart-woocommerce/assets/icon-256x256.gif?rev=3217170)
 * [Side Cart Woocommerce | Woocommerce Cart](https://wordpress.org/plugins/side-cart-woocommerce/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/side-cart-woocommerce/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/side-cart-woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/side-cart-woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/side-cart-woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/side-cart-woocommerce/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [bheadrick](https://wordpress.org/support/users/bheadrick/)
 * Last activity: [7 years, 3 months ago](https://wordpress.org/support/topic/fatal-errors-54/)
 * Status: not resolved