Ribbon Bar preview

[chicko.mafetty]

I tried to change a preview but i got this errormessage

Error description: Warning BASE/1004 Message not found: TRBTN:PRINTPAGE

Stack Calls
===========
Called from: source\rtl\tobject.prg => TRBTN:ERROR(172)
Called from: source\rtl\tobject.prg => TRBTN:MSGNOTFOUND(205)
Called from: source\rtl\tobject.prg => TRBTN:PRINTPAGE(0)
Called from: C:\Dev\OptoWin\RPREVIEW.PRG => (b)TPREVIEW:BUILDBUTTONBAR(317)
Called from: .\source\classes\TRBTN.PRG => TRBTN:CLICK(579)
Called from: .\source\classes\TRBTN.PRG => TRBTN:LBUTTONUP(754)
Called from: .\source\classes\CONTROL.PRG => TCONTROL:HANDLEEVENT(1487)
Called from: .\source\classes\TRBTN.PRG => TRBTN:HANDLEEVENT(1398)
Called from: .\source\classes\WINDOW.PRG => _FWH(3397)
Called from: => SYSREFRESH(0)
Called from: C:\Dev\OptoWin\MYL_100.PRG => STOPUNTIL(4438)
Called from: C:\Dev\OptoWin\RPREVIEW.PRG => TPREVIEW:ACTIVATE(264)
Called from: C:\Dev\OptoWin\RPREVIEW.PRG => RPREVIEW(1628)
Called from: .\source\classes\PRINTER.PRG => (b)TPRINTER:TPRINTER(230)
Called from: => TPRINTER:PREVIEW(0)
Called from: .\source\classes\PRINTER.PRG => PRINTEND(986)
Called from: C:\Dev\OptoWin\GBS_100.PRG => GBS_100_SENDFAX(3055)
Called from: C:\Dev\OptoWin\GBS_100.PRG => GBS_100_FAXORDER(2815)
Called from: C:\Dev\OptoWin\GBS_100.PRG => (b)GBS_100(163)
Called from: .\source\classes\XBROWSE.PRG => TXBROWSE:LDBLCLICK(3461)
Called from: => TWINDOW:HANDLEEVENT(0)
Called from: .\source\classes\CONTROL.PRG => TCONTROL:HANDLEEVENT(1497)
Called from: .\source\classes\XBROWSE.PRG => TXBROWSE:HANDLEEVENT(11016)
Called from: .\source\classes\WINDOW.PRG => _FWH(3397)
Called from: => WINRUN(0)
Called from: .\source\classes\WINDOW.PRG => TWINDOW:ACTIVATE(978)