Adding product to cart

Hello,

We just noticed on our website https://mdsortho.ro/, if a new user is not logged into an account and tries to add a product, the process no longer works as required. You can try to test with this product also: https://mdsortho.ro/product/mds-1st-molar-bondable-tubes-40pcs-box/

The Cart icon and contents of cart in top right is not updated. If I refresh the page manually, the cart then appears updated but on the step with invoicing details (name, email etc.), the form is not being validated (you can proceed this step without completing any information…).

If a user is logged into an account, everything works as expected.