LDAP Active Directory plugin

Hi, I am very new to TrueNAS, and having issue with Directory Services
When I configure Active Directory, after click Enable and Save nothing happen and no any error messave.
Back to the Directory Services window still shoing Active Directory and LDAP are disabled.
Then I try with LDAP, when I tried setup LDAP I got a error message “Active Directoy plugin must be used to join Active Directory domains.” ( btw wrong spelling "Directoy " )

Where I can install or enable this Active Directoy plugin?
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disbled

Thank you

The message is indicating that the hostname you are providing is not a LDAP it is an Active Directory domain. Are you using the correct details?

You are correct, I thought had AD DS setup is enough for me to use the LDAP option. After setup AD LDS its now working. Thank you