Scheduled reports are not scheduled and not executed

Hi all,
unfortunately we do not see our scheduled mail reports in the scheduled tasks list ( TasksTimetable Plugin).

What we schedule:
[attachment 2415 piwik_scheduledReport.png]

What we see:
[attachment 2416 piwik_scheduledTaskList.png]

Screenshots are from today.

The scheduled reports are not send. Sending manually does work. There is no cron job implemented, because the observed page is under really low traffic.

Does anyone how this can be fixed?

Kind regards,

Still no ideas on this topic?