Unable to set LDAP auth using below config file

[sangarole]

Command ran to configure it for LDAP authentication using Active directory.

/home/jupyterhub-admin/anaconda3/bin/jupyterhub -f /app/jupyterhub_config.py

Getting below error:

[I 2020-11-04 17:54:55.145 JupyterHub app:1673] Using Authenticator: ldapauthenticator.ldapauthenticator.LDAPAuthenticator-1.3.2
[I 2020-11-04 17:54:55.146 JupyterHub app:1673] Using Spawner: jupyterhub.spawner.LocalProcessSpawner-0.9.6
[I 2020-11-04 17:54:55.149 JupyterHub app:1016] Loading cookie_secret from /app/jupyterhub_cookie_secret
[I 2020-11-04 17:54:55.167 JupyterHub proxy:431] Generating new CONFIGPROXY_AUTH_TOKEN
[W 2020-11-04 17:54:55.169 JupyterHub configurable:168] Config option server_hosts not recognized by LDAPAuthenticator. Did you mean one of: server_address, server_port?
[W 2020-11-04 17:54:55.170 JupyterHub configurable:168] Config option user_search_filter not recognized by LDAPAuthenticator. Did you mean one of: lookup_dn_search_filter, search_filter, user_search_base?
[W 2020-11-04 17:54:55.170 JupyterHub configurable:168] Config option group_search_base not recognized by LDAPAuthenticator. Did you mean one of: lookup_dn_search_password, lookup_dn_search_user, user_search_base?
[W 2020-11-04 17:54:55.171 JupyterHub configurable:168] Config option group_search_filter not recognized by LDAPAuthenticator. Did you mean one of: lookup_dn_search_filter, lookup_dn_search_user, search_filter?
[W 2020-11-04 17:54:55.172 JupyterHub configurable:168] Config option allow_nested_groups not recognized by LDAPAuthenticator. Did you mean allowed_groups?
[W 2020-11-04 17:54:55.173 JupyterHub configurable:168] Config option create_user_home_dir not recognized by LDAPAuthenticator.
[W 2020-11-04 17:54:55.173 JupyterHub configurable:168] Config option create_user_home_dir_cmd not recognized by LDAPAuthenticator.
[W 2020-11-04 17:54:55.174 JupyterHub app:1173] No admin users, admin interface will be unavailable.
[W 2020-11-04 17:54:55.174 JupyterHub app:1174] Add any administrative users to c.Authenticator.admin_users in config.
[I 2020-11-04 17:54:55.174 JupyterHub app:1201] Not using whitelist. Any authenticated user will be allowed.
[I 2020-11-04 17:54:55.213 JupyterHub app:1855] Hub API listening on http://127.0.0.1:8081/hub/
[W 2020-11-04 17:54:55.214 JupyterHub proxy:565] Running JupyterHub without SSL. I hope there is SSL termination happening somewhere else...
[I 2020-11-04 17:54:55.215 JupyterHub proxy:567] Starting proxy @ http://:8000
17:54:55.463 [ConfigProxy] info: Proxying http://*:8000 to (no default)
17:54:55.468 [ConfigProxy] info: Proxy API at http://127.0.0.1:8001/api/routes
[I 2020-11-04 17:54:55.638 JupyterHub proxy:301] Checking routes
[I 2020-11-04 17:54:55.639 JupyterHub proxy:370] Adding default route for Hub: / => http://127.0.0.1:8081
17:54:55.639 [ConfigProxy] info: 200 GET /api/routes
17:54:55.641 [ConfigProxy] info: Adding route / -> http://127.0.0.1:8081
17:54:55.642 [ConfigProxy] info: 201 POST /api/routes/
[I 2020-11-04 17:54:55.643 JupyterHub app:1912] JupyterHub is now running at http://:8000
^C

Below is my config file for jupyterhub

c.JupyterHub.authenticator_class = 'ldapauthenticator.LDAPAuthenticator'
c.LDAPAuthenticator.server_hosts = 'DCname'
#c.LDAPAuthenticator.bind_user_dn = 'CN=imauser,CN=Users,DC=ex,DC=coml'
#c.LDAPAuthenticator.bind_user_password = 'imapassword'
c.LDAPAuthenticator.user_search_base = 'CN=ex,DC=ex,DC=com'
c.LDAPAuthenticator.user_search_filter = '(&(objectCategory=person)(objectClass=user)(sAMAccountName={username}))'
#c.LDAPAuthenticator.user_membership_attribute = 'memberOf'
c.LDAPAuthenticator.group_search_base = 'OU=AWS,OU=Groups,DC=zsservices,DC=local'
c.LDAPAuthenticator.group_search_filter = '(&(objectClass=group)(memberOf={group}))'
c.LDAPAuthenticator.allowed_groups = ['CN=grpp,OU=ex,OU=ex,OU=Groups,DC=ex,DC=ex']
c.LDAPAuthenticator.allow_nested_groups = True
c.LDAPAuthenticator.username_pattern = '[a-zA-Z0-9_.][a-zA-Z0-9_.-]{8,20}[a-zA-Z0-9_.$-]?'
c.LDAPAuthenticator.create_user_home_dir = True
c.LDAPAuthenticator.create_user_home_dir_cmd = ['mkhomedir_helper']

Jupyter packages installed o my server:
-bash-4.2$ pip list jupyter | grep jup
jupyter 1.0.0
jupyter-client 5.3.4
jupyter-console 6.1.0
jupyter-core 4.6.1
jupyterhub 0.9.6
jupyterhub-ldapauthenticator 1.3.2
jupyterlab 1.2.6
jupyterlab-server 1.0.6
-bash-4.2$

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