Jupyterhub on Kubernetes, LDAPAuthenticator used to connect via Active Directory, Error with minimal example

JupyterHub Zero to JupyterHub on Kubernetes
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I forgot to post the Information about the helm chart version. It’s the 0.11.1.

Additionally I tried it with the helm chart version 0.11.0, but the issue is the same (it’s using the same version of jupyterhub and ldapauthenticator).