Fatal error: Uncaught Error: Call to a member function get_cart() on null in /var/www/shop.lmbu.dk/public_html/wp-content/plugins/dynamic-pricing-and-discounts-for-woocommerce-basic-version/public/new_calculation_handler.php:79 Stack trace: #0 /var/www/shop.lmbu.dk/public_html/wp-content/plugins/dynamic-pricing-and-discounts-for-woocommerce-basic-version/public/class-xa-dynamic-pricing-plugin-public.php(39): XA_NewCalculationHandler->__construct() #1 /var/www/shop.lmbu.dk/public_html/wp-includes/class-wp-hook.php(292): xa_init_calculator('') #2 /var/www/shop.lmbu.dk/public_html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #3 /var/www/shop.lmbu.dk/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #4 /var/www/shop.lmbu.dk/public_html/wp-settings.php(582): do_action('wp_loaded') #5 /var/www/shop.lmbu.dk/public_html/wp-config.php(88): require_once('/var/www/shop.l...') #6 /var/www/shop.lmbu.dk/public_html/wp-load.php(37): require_once('/var/www/shop.l...') #7 /var/www/shop.lmbu.dk/p in /var/www/shop.lmbu.dk/public_html/wp-content/plugins/dynamic-pricing-and-discounts-for-woocommerce-basic-version/public/new_calculation_handler.php on line 79