ACTION REQUIRED: Renew these Let's Encrypt certificates by March 4
We recently discovered a bug in the Let's Encrypt certificate authority code,
Unfortunately, this means we need to revoke the certificates that were affected
by this bug, which includes one or more of your certificates. To avoid
disruption, you'll need to renew and replace your affected certificate(s) by
Wednesday, March 4, 2020. We sincerely apologize for the issue.
If you're not able to renew your certificate by March 4, the date we are
required to revoke these certificates, visitors to your site will see security
warnings until you do renew the certificate. Your ACME client documentation
should explain how to renew.
If you are using Certbot, the command to renew is:
certbot renew --force-renewal
If you need help, please visit our community support forum:
Please search thoroughly for a solution before you post a new question. Let's
Encrypt staff will help our community try to answer unresolved questions as
quickly as possible.
Tibo · Thu 5 Mar 2020 3:17PM
A quick check gave me: "The certificate currently available on talk.kiezburn.org is OK. It is not one of the certificates affected by the Let's Encrypt CAA rechecking problem. Its serial number is xxx"
further i would look into the let's encrypt issue and see if actions are required