Hi, thanks for your quick answer.
1. Do you have any security plugins installed or and web application firewall rules configured?
I have Wordfence, but I deactivated it and the Problem still occurs, even after whitelisting my IP-Address.
2. Are you seeing any browser console errors where this error occurs?
Yes:
1. Failed to load resource: the server responded with a status of 510 ()
googlesitekit-api.ba6a5de8761292956a74.js:1
2. Google Site Kit API Error method:POST datapoint:settings type:modules identifier:analytics error:”The response is not a valid JSON response.”
3. To rule out any conflicting plugins/themes could you try the following steps:
– Login to your site from a Chrome browser incognito window.
– Install and activate the Health Check & Troubleshooting plugin.
– Navigate to “Plugins > Health Check & Troubleshooting > Troubleshoot”.
– From the same screen click on the “Available Plugins” tab at the top right and then click on the “Enable” option next to “Site Kit by Google”
– Attempt to connect the Analytics module within Site Kit once more.
You can exit troubleshooting mode afterwards. Please share your Site Health information. You can use this form to share privately.
I will try this later