Internal Server Error Iredadmin

==== Required information ====
- iRedMail version:  2.2.0
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Linux/BSD distribution name and version: DEBIAN 7
- Related log if you're reporting an issue: iredadmin.log
====
Hi  Happy new year to everyone
!i try to move my iredmail server to a new one, but after transferring my ldic ( and changing mail and mail admin password with Apache Directory studio)
I can't log to iredadmin but i can log in to SOGo
Thanks for the help
here's my log Uwsgi/app/iredadmin.log
return handle_class(cls)
  File "/usr/lib/python2.7/dist-packages/web/application.py", line 396, in handle_class
    return tocall(*args)
  File "/usr/share/apache2/iRedAdmin-Pro-LDAP-2.2.0/controllers/ldap/basic.py", line 72, in POST
    qr_user_auth = auth.Auth(dn=dn_user, password=password)
  File "/usr/share/apache2/iRedAdmin-Pro-LDAP-2.2.0/libs/ldaplib/auth.py", line 71, in Auth
    if qr[0]:
TypeError: 'NoneType' object has no attribute '__getitem__'