This error in Aurena dashboard is commonly seen for customers who have applied  APP10 UPD7 and it is becaused of a bug in the UPD7  DEMAND component.

This has been fixed in UPD  8 but customers can use below workaround untill UPD8 is get delivered.

Small configuration change(Demand Server-> File->Setup-> General->select Forecast & IPR; Then restart the demand plan server).