Error from cert-manager related to traefik

Traefik Traefik v3 (latest)
1

Getting certificates stopped working after I upgraded traefik. I reverted the upgrade, but now I get error messages like:

controller.go:162] "re-queuing item due to error processing" err="error creating new order: Get \"https://acme-staging-v02.api.letsencrypt.org/directory\": tls: failed to verify certificate: x509: certificate is valid for 655131f9a4ae545ac9a2d06e28fc2b7f.2ea176401fd3ecf50df0082cde80ebd7.traefik.default, not acme-staging-v02.api.letsencrypt.org" logger="cert-manager.controller" key="test/test-tls-1-2545705604"

Most, but not all ingresses now get 404.

I can't make sense of this. What broke and how can I repair it?

2

It broke after update to Traefik v3? Check the migration doc.

3

I just realized, it wasn't a real update, just a redeployment in Lens, the version stayed the same: traefik-28.1.0-beta.3.

4

Not sure what Lens is. Official Traefik release versions usually look different (link).

5

Lens is a Kubernetes IDE (https://k8slens.dev)