I'm having several issues using the WP eCommerce plugin since the latest update. First, there was an issue with setting product variations. Now that seems to be fixed and there is another issue within the cart regarding the shipping.
Store URL: http://www.stampnouveau.com/products-page/address-stamps/design-33/
WordPress version: 3.9.1
WP e-Commerce version: 188.8.131.52
Theme: Storefront Elegance
I added 20+ products to the cart using a black ink/blue mount variation. I added a coupon code for 10% off. Once I tried to remove a product, I believe it attempted to re-calculate the shipping and then I received the PHP error. I expected it to remove the item and just reload as normal. Now I can't load any products to cart and the cart page is not loading correctly.
Error log shows:
Fatal error: Call to a member function calculate_shipping() on a non-object in /home/stampnou/public_html/wp-content/plugins/wp-e-commerce/wpsc-includes/cart.class.php on line 456
Fatal error: Call to a member function get_title() on a non-object in /home/stampnou/public_html/wp-content/plugins/wp-e-commerce/wpsc-components/theme-engine-v1/helpers/cart.php on line 32