This error is due to an issue with the Authentication likely on the server side. This issue can commonly be attributed to an improperly defined API key.

To fix this, navigate to your config.php file in your site project files. And keep note of your API Keys.

Next,

Login to your Circle Console at

https://console.gocircle.ai/dashboard/web/login

And click info.

Next, verify that all the information list on your application info matches your API keys.