Getting "You must be logged in to the server (the server has asked for the client to provide credentials)" error message on a Single Node OpenShift after certificates expire

Issue

• After having an SNO turned off for more than 90 days and turning it back on, the self-signed certificates are all expired.

• When trying to renew the certificates following the steps of the knowledge article 5953441, the following error message is shown:

  # export KUBECONFIG=/etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/lb-int.kubeconfig
  # oc get csr -o name | xargs oc adm certificate approve
  [...]
  error: You must be logged in to the server (the server has asked for the client to provide credentials)