error 20 at 0 depth lookup: unable to get local issuer certificate

Here is my issuer manifest

apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-staging
  namespace: buzzbrain-namespace
spec:
  acme:
    email: administrator@buzzingmemories.com
    server: https://acme-staging-v02.api.letsencrypt.org/directory
    privateKeySecretRef:
      name: letsencrypt-staging-private-key
    solvers:
      - http01:
          ingress:
            class: nginx

Hi there,

I could suggest first checking the logs to see if you would get any more information on the error:

kubectl logs -n cert-manager -l app=cert-manager

Also, verify that the Cert-Manager Pods are up and running:

kubectl get pods -n cert-manager

Along with the output of the above commands, can you share your Issuer manifest file here?

- Bobby