I have a problem here. After I chick the Checkout button in shopping cart, the system bring me back to shopping cart. So it always loop there and I cannot checkout at all. The shop is chiaus-sg.myshopify.com
I just tried all three browsers, Microsoft Edge, Chrome and Firefox. I have the same issue on all of them.
I am using an ASUS laptop running Windows 10.
I did heard my colleagues testing the system without reporting this issue. It may be only on my PC. However, I worry it will also happen in selected customer PC too.