kubectl error when getting information from eks cluster

$ kubectl get svc -A
error: exec plugin: invalid apiVersion "client.authentication.k8s.io/v1alpha1"

Related issue: https://github.com/aws/aws-cli/issues/6920

Update awscli.

$ curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
$ unzip awscliv2.zip
$ sudo ./aws/install --update

Update kubeconfig.

$ aws eks update-kubeconfig --name nabecluster

Fixed.