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Hank here from Shopify.
That can be down to a couple of different things, but without your store URL, I am unable to give you specific information with this, but I will give some general advice that should hopefully assist you further.
The most common cause for this is that you are still on a trial plan, so the checkout is disabled, and that would be why that error message exists. Selecting a paid plan would remove this message.
If however, you are still noticing the issue, depending on your theme it will be located within the code (Online Store > Themes > Actions > Edit code > Assets > theme.js liquid). Using the search function will allow you to locate the code itself that you need to change. I would advise creating a duplicate of your theme before editing the code itself.
Is it happening on any other device, or just specifically on your iPhone?
Let me know how you get on with the above suggestions, or if you have any further questions for me!
All the best,
I read all your advices but it is still not working on my store.
I still have the issue :
I can not find where window.location.href = is located. I tried as you wrote (Online Store > Themes > Actions > Edit code > Assets > theme.js).
But when I'm on theme.js and type window.location.href =, nothing appear.
Do you know what can I do to solve this problem ?
Thank you for sharing your store URL!
However, I am not seeing that error message, can you link me to a page where the error exists?
I tried to make an order on your website, and I was able to continue to the end (before confirming payment), and I did not see an error.
However, if the issue is with your payment provider you may be best reaching out to them about this, to see if there is an issue with the integration perhaps. Have you spoken with G2A Pay yet?
Or can you share a screenshot of the error and tell me the steps you are taking before you see this, as it is difficult to replicate it on my end.
I will happily try to assist you further with this, my friend.
This is an accepted solution.
Thank you for sharing that, that really helped me see this from your side!
I spoke with the technical team about this, and the issue is on G2A's side, so you would need to contact them about this.
I have a link to their support section, which has some helpful suggestions and how to contact their team should you need to.
They will be able to advise of the error, but as I mentioned, the window reference is a known issue when you are logged in, so I would advise you to ask them about the fatal error received.
Best of luck with this, but they should be able to resolve this for you!