The issue was fixed by rolling back Elementor from the latest to the previous version.
Update – there is a conflict with Elementor. Everything works fine when I turn it off.
I rolled back WooCommerce to the previous version but it still did not work.
Another problem from desktop is the “Dropdown” preview of the cart which never pops up. There is only a tiny boarder appearing.
I have already opened a ticket but I need to fix this ASAP.
Any advices will be much appreciated!