Vault-agent-injector: Error updating MutatingWebhookConfiguration: the server could not find the requested resource

I am trying to install vault-helm v0.19.0 on k8s v1.23.1

the ‘vault’ pod comes up fine

the ‘vault-agent-injector’ fails to come up

$ kubectl -n vault logs sva-vault-agent-injector-7cc444f99c-l5rgn
2022-10-29T11:33:21.465Z [INFO] handler: Starting handler…
Listening on “:8080”…
Updated certificate bundle received. Updating certs…
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
2022/10/29 11:33:27 http: TLS handshake error from 10.10.10.2:37910: no certificate available
2022/10/29 11:33:27 http: TLS handshake error from 10.10.10.2:37908: no certificate available
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
Error updating MutatingWebhookConfiguration: the server could not find the requested resource
2022/10/29 11:33:29 http: TLS handshake error from 10.10.10.2:37988: no certificate available
2022/10/29 11:33:29 http: TLS handshake error from 10.10.10.2:37990: no certificate available
2022/10/29 11:33:29 http: TLS handshake error from 10.10.10.2:37992: no certificate available

The webhook configuration does exist.

$ kubectl get MutatingWebhookConfiguration
NAME WEBHOOKS AGE
cm-cert-manager-webhook 1 14h
sva-vault-agent-injector-cfg 1 4m22s

any ideas ?