Netbackup Opscenter 7.6.1 migrating to Windows 2012

We are upgrading our OS....Currently i have Opscenter 7.5 installed on WIndows 2003 SP2 and is working fine. I installed Opscenter 7.6.1 on Windows 2012 VM environment.  The installation was successful and I launched OpsCenter without error before restoring the db files.  But after restoring DB files to the new DB data folder running the dbbakup script - I could not logon to opscenter here is my error "Error occurred while connecting to the OpsCenter Server.
Please ensure that the server is running"

-The drop down for Domain: OpsCenterUsers(vx) unavailable/Empty

Please help!

Thanks in advance for your help.