Empty cart

Hi!

We updated to the last version of WP ecommerce and WP.
If we try to add a product to the cart it doesn’t work, the cart remains empty.

We are working in localhost
We had an old version (wpe-commerce 3.8.7.6.2) and it worked fine.

Can you help us?

Thanks

https://ww.wp.xz.cn/plugins/wp-e-commerce/