Solution : https://service.sap.com/sap/support/notes/1560663 (SAP Service marketplace login required)
Key words : 
risk management reporting 2, select report heatmap 3, select orgunit 1, select orgunit 2, selection screen 4, selection screen 6, program error, solution apply, correction instructions, orgunit selection
Related Notes : 
       
| 1549787 | Process Control 10.0 Support Package 03 - Master Note |