How can I fix the error screen on my US cart page?

Hi Guys

It has come to my attention that when someone arrives from the US- they see a welcome note and a click to go into the store - that click seems to go to an error page. How can I fix this ? I cant find where to direct the page.

Below is the proof - we should be getting a lot of US sales and this may be prohibiting my customers to a sale.

Can you help?!

/en-us/cart

100.00%

/en-us/policies/privacy-policy

100.00%

/en-us/policies/terms-of-service

100.00%

/en-us/policies/shipping-policy

100.00%

/en-us/pages/contact