Received email - Your webhook endpoint is not responsive, please review this email for details

Hi team, I received email with below message

Your webhook endpoint failed to respond to our validation request**

If your webhook endpoint fails to respond to our validation requests 2 more times, we will stop sending webhooks to your webhook endpoint until you fix the issue.

I checked the enpoint and its been working as expected. We are receiving webhooks as expected.

This is in our production. Please advise, I do not want outage. Endpoint is up and we are receiving webhooks.

Thank you
Vaibhav