I was really a noob in linux because it’s very easy
1 / Open the STARTUP/CRON tab in System/setup
2 / Add a job and give a name
3 / After the #line, in a new line, type “reboot” without quotes
4/ Choose time and date to start the script. Save it.
5/ Re-open the startup/cron tab to make a test (it’s better)
your ZS should easily be able to have months of uptime, where i used to work the 3 systems had uptimes in the area of 4 months untill electricians started to power down sections with no warning to me. if you are getting kernel panics, check your hardware RAM and hdd first then the rest of the hardware, this could be the first signs of a bigger issue.