Solution : https://service.sap.com/sap/support/notes/1071967 (SAP Service marketplace login required)
Key words :
blank screen appears, retangular white space, terms selbst-diagnose, getwa_not_assigned - check st22, coding error, short-dump, transaction snote, dswp_ssa_get_ewa_overview reason, dswp_ssa_get_ewa_overview, -diagnosis
Related Notes :
1073382 | New Self-diagnosis in Solution Manager: a quick guide |