Solution : https://service.sap.com/sap/support/notes/649356 (SAP Service marketplace login required)
Key words : 
support package 13 - support package 16, terms ipc reason, sap software center, 0 support package 16, desktop ui, nullpointerexception occurs, internet pricing, conversion, conversionengine, prerequisites
Related Notes : 
       
| 486061 | How to get patches for CRM Internet Pricing Configurator |