It looks like the cron isn't even running at all, so I have a feeling it's not a permissions issue yet.
I modified /etc/cron.d/ispc_chrooted_web1 to the following and it still doesn't run:
* * * * * root /etc/cron.d/send_it > dev/null 2>> /var/log/ispconfig/cron.log
What is it that is supposed to run this ispc_chrooted_web1 file? How else can I narrow this down?