It seems you originally had your Cron configuration in crontab - l. You then added an itflow configuration file in /etc/cron.d but this didn't work due to the wrong file permissions.
Once you removed the old cron configuration from crontab -l, and added the new configurations to the file in /etc/cron.d/itflow (with some logging to syslog), and fixed the permissions to be root/600 with a blank line at the end, everything worked as expected.