This app looked great, however I tried setting this app up on my store and every time I clicked on it in my apps it took me to an error page. A bit disappointing.
Seems like a Safari issue.
You need to disable the “Prevent cross-site tracking” whenever you want to change the app settings.
For some reason Apple’s API sees some apps as “threats” and doesn’t allow a connection to get through.
Also, try using your desktop device.
If that does not help - try downloading Chrome and setting the app from there.
The issue you described is a local issue that might happen due to your local cache / cookies.
The app is working perfectly fine in over 5,000 stores.
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We have reached out multiple times through email yet received no response. We'll be happy to help you sort it out - our team is at your service.