Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: matrixtest.lightshiplabs.org
I ran this command: doas certbot renew
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Processing /etc/letsencrypt/renewal/matrixtest.lightshiplabs.org.conf
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Renewing an existing certificate for matrixtest.lightshiplabs.org
Certbot failed to authenticate some domains (authenticator: nginx). The Certificate Authority reported these problems:
Domain: matrixtest.lightshiplabs.org
Type: unauthorized
Detail: 70.109.163.54: Invalid response from http://matrixtest.lightshiplabs.org/.well-known/acme-challenge/jU_FdAz1vzcHx6KkaizpP4ayDbmUMxyr96xac1CCLbA: 400
Hint: The Certificate Authority failed to verify the temporary nginx configuration changes made by Certbot. Ensure the listed domains point to this nginx server and that it is accessible from the internet.
Failed to renew certificate matrixtest.lightshiplabs.org with error: Some challenges have failed.
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All renewals failed. The following certificates could not be renewed:
/etc/letsencrypt/live/matrixtest.lightshiplabs.org/fullchain.pem (failure)
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1 renew failure(s), 0 parse failure(s)
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version): nginx version: nginx/1.26.2
The operating system my web server runs on is (include version): Alpine Linux 3.20.3
My hosting provider, if applicable, is: N/A
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): No
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 2.10.0
Misc. Information: The SSL cert was valid, as seen from crt.sh | matrixtest.lightshiplabs.org, and the directory structure of /etc/letsencrypt appears to be correct. I'm not really sure why the SSL cert for this server is not renewing. I can also navigate to http://matrixtest.lightshiplabs.org/ in a web browser, which does correctly redirect to https://matrixtest.lightshiplabs.org/, but again the SSL cert there has expired.