migration backup exec 2010 r2

hi.

I migrate backup exec 2010 r2 from windows server 2008 r2 to another same version server.

All windows update and backup exec update are installed before migration.

I follow the instruction on the site.

But after migration i get error when i started the service "backup exec server"

The Backup Exec Server Service detected a schema version mismatch

The Backup Exec Server Service did not start. An internal error (-536813108)  occurred in object 1

i use bemig and start the service again, but got the error.

I tried to restore BE to another server and got the same problem.

Can anybody help me?