Thanks for reaching out. Based on a previous report, what may be happening is a third party plugin or browser feature is impacting Site Kit setup.
So we can determine more on this, please attempt setup from a Chrome browser incognito window. If the same occurs, I’ll provide you with some troubleshooting suggestions to rule out third party plugins or browser related features impacting your setup.
Let me know if you have any questions with the above.
Thanks for the update @theworldjob. The error you’re now facing differs to the initially reported error, and can occur in various circumstances as per this guide.
To troubleshoot this further, please follow the steps below:
Thanks for sharing @theworldjob. I’ve been performing some checks on your site and I am encountering regular critical errors.
You can also check this using some public sites that check the status of your site (example).
I suspect this may be the cause of your site not being able to complete set up. To troubleshoot this further, can you temporary disable Hummingbird and Docket Cache before checking can you complete Site Kit setup? If the same occurs, we’ll troubleshoot based on other potential third party plugin conflicts.
With regards your additional query, the screenshot provided is from analytics.google.com. Regardless of this screenshot, I can confirm that the GA4 property referenced is active on your site, placed via Site Kit. If you check the tagassistant.google.com service you’ll noticed also that any visits to your site are being accounted for via this property (screenshot).
Let me know if you have any further questions on this.