Trying to order razer kishi ultra, but the order process isn't going on.

I am trying to buy the Razer Kishi Ultra for the Honkai Impact 3rd bonuses,

However, from checkout process, It is not going on shipping method process page,

just freeze with loading.

I tried few hours with 4 devices, other network, and other browsers, it didn’t worked.

And it seems there is no support categories about order error.

Please check this, and help to solve it.