Solution : https://service.sap.com/sap/support/notes/541038 (SAP Service marketplace login required)
Key words : 
initial sap easy access screen appears, manually create time-dependent hierarchies, updating time-dependent hierarchies, program error -- solution bw 3, 0a            import support package 12, 0b            import support package 5, 0a support package 12, 0b support package 5, bw support packages, hierarchy upload terminates
Related Notes : 
       
| 523249 | SAPBWNews BW 3.0B Support Package 12 | 
| 523217 | SAPBWNews for BW 3.0A Support Package 12 | 
| 493976 | SAPBWNews BW 3.0B Support Package 05 |