Fixed issue #1176 - Generation of weekly report fails with internal server error.
Fixed issue #1176 - Generation of weekly report fails with internal server error.

monotek/zammad,monotek/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad