DigitalOcean Kubernetes: new control plane is faster and free, enable HA for 99.95% uptime SLA

Question

Let's Encrypt renewal failing - CERTIFICATE_VERIFY_FAILED

Hello, I’ve just started receiving this message from Lets Encrypt on my droplet when it tries to renew the certificate for my website. This is the full error -

Attempting to renew cert (innoviatech.com) from /etc/letsencrypt/renewal/innoviatech.com.conf produced an unexpected error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645). Skipping.
All renewal attempts failed. The following certs could not be renewed:
  /etc/letsencrypt/live/innoviatech.com/fullchain.pem (failure)

Not sure what is causing this. The DNS of the domain name still points to the droplet and there’s been no changes to the Apache config. The certificate expires in 9 days so hoping to resolve before then!..

Thanks in advance,

Phil.

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Sign up now

Bobby Iliev • December 4, 2021

Hi there,

What I could suggest is trying to upgrade your certbot installation to the latest version:

sudo apt update
sudo apt install --only-upgrade certbot

Let me know if this helps!

There seems to have been a similar discussion on the Let’s Encrypt community here:

https://community.letsencrypt.org/t/ssl-certificate-verify-failed-certificate-verify-failed-ssl-c-645/162152

Best, Bobby

Try DigitalOcean for free

Click below to sign up and get $100 of credit to try our products over 60 days!

Sign up