Problem with OM 3.0.3 (on centos6) connect AD 2008!!

Hi,
I have installed OM 3.0.3 on Centos6 and i try connect to Active Directory window 2008, but it don't work.
My " om_ldap.cfg":
ldap_conn_host=2...
ldap_conn_port=389
ldap_conn_secure=false

ldap_admin_dn=CN:Administrator,CN:Users,DC:AD,DC:vn
ldap_passwd=*****
ldap_search_base=OU:All Users,DC:AD,DC:vn
ldap_search_query=(uid=%s)
ldap_search_scope=ONELEVEL
ldap_auth_type=NONE

The path to Config file name: /openmeetings/webapps/openmeetings/conf/om_ldap.cfg

There is log When i try login by user domain AD:

DEBUG 11-12 14:12:41.049 o.a.o.l.LdapLoginManagement:165 [http-nio-0.0.0.0-5080-exec-1] - LdapLoginmanagement.doLdapLogin
ERROR 11-12 14:12:41.052 o.a.o.l.LdapLoginManagement:174 [http-nio-0.0.0.0-5080-exec-1] - Error on LdapLogin : Configurationdata couldnt be retrieved!
DEBUG 11-12 14:12:41.052 o.a.w.u.c.CookieUtils:266 [http-nio-0.0.0.0-5080-exec-1] - Unable to find Cookie with name=LoggedIn and request URI=signin?0-1.IBehaviorListener.2-signin
DEBUG 11-12 14:12:41.052 o.a.w.u.c.CookieUtils:266 [http-nio-0.0.0.0-5080-exec-1] - Unable to find Cookie with name=LoggedIn and request URI=signin?0-1.IBehaviorListener.2-signin
DEBUG 11-12 14:12:41.053 o.a.wicket.Page:871 [http-nio-0.0.0.0-5080-exec-1] - ending request for page [Page class = org.apache.openmeetings.web.pages.auth.SignInPage, id = 0, render count = 1], request org.apache.wicket.protocol.http.servlet.ServletWebRequest@61bb6229
DEBUG 11-12 14:12:41.054 o.a.wicket.Page:871 [http-nio-0.0.0.0-5080-exec-1] - ending request for page [Page class = org.apache.openmeetings.web.pages.auth.SignInPage, id = 0, render count = 1], request org.apache.wicket.protocol.http.servlet.ServletWebRequest@61bb6229
DEBUG 11-12 14:12:41.059 o.a.w.p.AsynchronousDataStore$PageSavingRunnable:354 [Wicket-PageSavingThread] - Saving asynchronously: Entry [sessionId=F6E0A7E1527067A33E903CCCF4B46DA0, pageId=0]...

Pls help me fix it.
Thanks