Solution : https://service.sap.com/sap/support/notes/1497205 (SAP Service marketplace login required)
Summary : 
      If a transformation is inactive, the system fails to generate a REQU request, resulting in no entry in the Persistent Staging Area (PSA) Administration. Trying to alter this 'red request' using Quality Management (QM) actions triggers a crash as no valid PSA/Transformation exists. To resolve this issue for various SAP NetWeaver BW versions, appropriate support packages—detailing corrections for this program error—must be imported once available, following the guidelines from the respective SAPBINews Notes. For urgent patches, implementation of advance correction using instructions in Note 875986, concerning transaction SNOTE, is recommended.
Key words : 
solution sap netweaver bw 7, sap netweaver bw 7, persistent staging area, sap nw bw 7, 01 bw abap sp08, 30 bw abap sp01, sapbinews nw bi 7, psa/valid transformation, 00import support package 25, import support package 08
Related Notes : 
       
| 1471463 | SAPBWNews NW BW 7.01 ABAP SP08 | 
| 1468668 | SAPBWNews NW7.0 BW ABAP Support Package 25 | 
| 1450990 | SAPBWNews NW BW 7.02 ABAP SP05 | 
| 1392433 | SAPBINews NW7.11 BW ABAP Support Package 05 |