migrating certificates

[Ger]

Hello people.
I was migrating one zimbra to an other. I had to change the hostname and default domain of the new server, It has worked OK, but I´m having problems with the certificates. my old hostname was mail.tecoarproyects.com and the newone is mail.ferrum.com, I have brought up a new mailserver with the new domain on a VM, so I could migrate that CA to the server. but I´m having problems with java.net.SockException for example, when I want to run zmprov, or when I start the services, tells me Unable to determine enabled services from ldap.
Unable to determine enabled services. etc.
Can you give a peace of advices about this problem.
I have to solve this problem as soon as posible!
thank you for your attention.