[Zope] Problem while adding LDAP adapter

Hi, I added a LDAP adapter in my zope. I am getting the following error when I try to view the groups(Show Groups). Can anyone help me? I am running zope 2.5.1. Thank you. Zope has encountered an error while publishing this resource. Error Type: OPERATIONS_ERROR Error Value: {'desc': 'Operations error', 'info': '000020D6: SvcErr: DSID-03100690, problem 5012 (DIR_ERROR), data 0\n'} Regards, Paul.