...hmmm,
Make backup from your phone first (address book, contacts,ringers...) using phone manager (SiMoCo, Mobile Phone Manager,.....). After, open Joker, enter in Service Mode and click to "Del Instances". You need to make testpoint (cut track) to enter in Service Mode. Power on phone and wait ~ 2 minutes to starting phone. If this error appeair again, you need to make fullflash.
Br,
dagos