Solution : https://service.sap.com/sap/support/notes/643051 (SAP Service marketplace login required)
Key words : 
//myproxy/myserver/sap/bw/bex, 0b            import support package 15, 1c            import support package 09, 1080/sap/bw/bex, white page appears, terms query reason, bw support packages, 0b support package 15, 1c support package 09, current support package
Related Notes : 
       
| 571720 | SAPBWNews BW 3.1 Content Support Package 09 | 
| 571698 | SAPBWNews BW 3.0B Support Package 15 |