Error presenting challenge: the server is currently unable to handle the request (post ns1.acme.nsone.net)

[tejaswinieswar]

cert-manager version: 1.7.3
K8s server version: v1.18.18

DNS Challenge is failing with the below error

Error presenting challenge: the server is currently unable to handle the request (post [ns1.acme.nsone.net](http://ns1.acme.nsone.net/))

In NS1 webhook logs notice the below. Checked the cert-manager-webhook-cert-manager-webhook-ns1-webhook-tls certs and they are not expired

I0227 09:43:49.228439       1 shared_informer.go:204] Caches are synced for client-ca::kube-system::extension-apiserver-authentication::client-ca-file
E0227 09:43:51.210859       1 authentication.go:104] Unable to authenticate the request due to an error: x509: certificate has expired or is not yet valid: current time 2024-02-27T09:43:51Z is after 2024-01-19T16:50:08Z
E0227 09:43:51.210859       1 authentication.go:104] Unable to authenticate the request due to an error: x509: certificate has expired or is not yet valid: current time 2024-02-27T09:43:51Z is after 2024-01-19T16:50:08Z
E0227 09:43:51.210846       1 authentication.go:104] Unable to authenticate the request due to an error: x509: certificate has expired or is not yet valid: current time 2024-02-27T09:43:51Z is after 2024-01-19T16:50:08Z