System Message 10232 Assertion Failure! File: Parinter.cpp/line:90. Expression: am.AppNotificaitonfunc

Hi, one of our end users clicks the 3rd party (Gulfstream) barcode code launcher icon which opens the SL main screen and then the system message 10232 pops up on the screen. File: Parinter.cpp/Line:90/Expression: am.pAppNotificaitonfunc...

There is no customized screen or printer changed lately. It worked fine before the end of the Dec. and it only happens to one user only.

Any help greatly appreciated.

Thanks

Ginny