If the current installation of DPM uses an expired instance of the Evaluation Edition of SQL Server 2008 R2, you must manually ...

If the current installation of DPM uses an expired instance of the Evaluation Edition of SQL Server 2008 R2, you must manually upgrade to the retail edition of SQL Server 2008 R2. For instructions, see the System Center 2012 DPM Deployment Guide. For more information about this error, see the application event log.