Hello,
This Error "The schema version in the chosen data file higher than the server schema version. Restore is not allowed. The restore process will now exit." occurs when you are trying to Restore a backup of Database from an older version of SEPM to an higher version of SEPM.
Could you please let us know, What was the version of SEPM installed when the backup was taken?
It is recommended to install the same version of SEPM which was installed on the earlier server.
Can a backup of SEPM from a previous version be used on a newer version of SEPM?
http://www.symantec.com/docs/TECH105147
Hope that helps!!