Error when renewing Certificate

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My domain is:

I ran this command: sudo certbot renew

It produced this output:

Type: unauthorized
Detail: Invalid response from

My web server is (include version): apache2

The operating system my web server runs on is (include version): Ubuntu 16.04

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 0.31.0

Hi @mtionko, and welcome to the LE community forum :slight_smile:

Something has changed since your last renewal.
Let's have a look at:
sudo apachectl -t -D DUMP_VHOSTS


Here is a list of issued certificates |, the latest being 2023-06-23.

Is this resolved @mtionko?


Thank you Sirs for the Reply. This issue has been resolved. Apparently Devs have have configured multiple port 80s on the single apache config file which created conflicts and thus letsencrypt unable to auto-renew the cert. Thanks again for the support. Best Regards.


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