iredadmin, deleted default domain, can't login into iredadmin

Hi,

==== Required information ====
- iRedMail version: 0.8.6
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Linux/BSD distribution name and version: CentOS 6
- Related log if you're reporting an issue:
====

I installed default iredmail with (domainX.com) ... later I added another domain via iredadmin (domainB.com) and deleted domainX.com from iredadmin ... of course I forgot that my admin accounts were stored in the domainX.com in the LDAP ... now how can I login into iredadmin? how can I set one user from domainB.com to become iredadmin administrator?

btw: mail for the new domainB.com works OK, I can use roudcube, etc, I just can't login into iredadmin anymore

Thanks for help!