Do you have a WordPress site using the Google sitekit plugin? Well go and have a look at it after the latest update. I suspect you’ll see a blank page.
This is because the Google Sitekit Plugin is generating a Internal Server Error (http code 500), Thanks Google!!
[29-May-2025 10:39:30 UTC] PHP Fatal error: Namespace declaration statement has to be the very first statement or after any declare call in the script in .../wp-content/plugins/google-site-kit/includes/Core/Authentication/REST_Authentication_Controller.php on line 12
Thats the error message I see in the log file.
When i check the file in the location above there is a very suspicious string right at the top and it’s also got a different modified date to all the others files.
Very odd and highly suspect.
Delete and then download a new copy.