Ash here from the Shopify team. Thank you for posting in the Shopify Community Forums!
I understand you're experiencing an issue with the online checkout, where customers are unable to proceed past the "information" step. I'm happy to help out with finding a solution to this problem. In order to resolve this, we first need to understand why it's happening. Could you please reply back to this post with the following information? This should help us determine our best next steps:
Looking forward to receiving your reply so we can dig into this deeper together!
Ash here again. Thank you for getting back to me with your shops URL. I just loaded up your site and added a random product to the cart for a test. I was able to proceed past the "Information" step of the checkout with no issues on my end, leading me to believe there may be a localized issue on your end which we can troubleshoot. Can you please try the following steps and then try again to proceed past the "Information" step of the checkout?
If the issue persists after trying the above steps, could you please take a screen recording of the issue in action and send it to me in a reply here?
Looking forward to hearing back, and hopefully those steps clear up the problem.
Thank you for getting back to me with that update. It's great to hear you were able to proceed through the next steps of your checkout. Regarding the notice about your location not being supported for shipping, is this a notice you're seeing in the shipping section of the checkout? If so, then you'll probably need to head over to your Settings> Shipping in the Shopify admin and modify your stores shipping rates.
While Gooten may ship world wide, it's still up to you as a business to specify where you ship to, and set up your stores shipping rates accordingly. Our Help Center has a section with information on setting up shipping rates for your Shopify store, but I suggest first checking out the documentation Gooten has on fulfillment and shipping for their Shopify integration. That page has information on some settings they recommend applying, as well as how they recommend setting up shipping rates for your Gooten products on your Shopify store.