Disable ps_shoppingcart module.
Update ps_shoppingcart module with last release: https://github.com/PrestaShop/ps_shoppingcart/archive/v2.0.3.zip.
Upload ZIP from the backoffice.
Enable ps_shoppingcart module.
Edit History
Update ps_shoppingcart module with last release: https://github.com/PrestaShop/ps_shoppingcart/archive/v2.0.3.zip.
Upload ZIP from the backoffice.
Disable and then enable ps_shoppingcart module.