SAP Message RSAR009 - BI &1 inactive in source system &2

Diagnosis BI &V1& is flagged as inactive in BI source system &V2&. Procedure If you have upgraded to BW 2.0, activate the source system. With other errors connected to this source system, choose Restore the source system from the source system tree in the DataWarehousing Workbench. This regenerates the source system, merges therelevant communication parameters, and replicates the DataSources in BI.