Unable to run the report

[Kushalava]

HI Cognos Gururs

My report is running fine in development environment ,the same report while am trying run in production environment it was giving error as QE-DEF-0356 Framework Manager has denied access to this model for this user. Please contact your security administrator.
RSV-SRV-0042 Trace back:
RSReportService.cpp(766): QEException: CCL_CAUGHT: RSReportService::processImpl(),

i have not assigned any securities for package could you plz help me on that