Centova Cast v3.2.2 on Ubuntu 15.04

When i select a 7 day report to download , the resulting excel sheet has nothing in it but headers??
No matter what i select as report date it always shows same thing at the bottom to download

report_2015-09.zip   711 B   Download

A great day to all!
Thanks..

The track reports are generated monthly, on the 1st of each month, for the entire previous month

You probably didn't have any activity in September and that's why the report doesn't contain anything.