Header cart is not updating after removing

[Ana Maria Sierra]

Hi, I have an issue and I haven't found any solution by far. When I'm in the shopping cart and remove an item, the cart in the header is now updated. I think issue if for prestashop, since I tested the same scenario in the Demo and it it happens the same. If someone has the way to solve it I really appreciate it. I'm using 1.7.7.0 and also 1.7.6.9, but it happens since 1.7.6.0