Need help ! problem to restore OpManager DB

Hi,

I need your help to restore our OpManager server.

After a break down with the OpManager Server, I had setting up a new server with same release (OpManager 5.5 + Service pack 6000).

I have only a ntbackup from my old server with directory OpManager.

I can restore ..\OpManager\conf directory and start again OpManager => it works

But if try to restore data (..\OpManager\MySql\Data\OpManager) , server don't start, there's an error with DB fialed.

If I restore the data directory in a other directory under ..\mysql\data, I can see and check tables with MySQLAdministrator.

Is there a possibility to check the DB ?
I try with DBrepair.bat but there's no error ?

thanks for your suggestions,

Christophe