Automator Calendar Alarm not running automatically on Mac

I'm new at using Automator, so please keep responses simple.

I created a Calendar Alarm to print a test page every few days. I set the days and times in Calendar, but at those specified times nothing happens.

The Alarm will print when I click on Run in Automator, but not automatically like I want.

Does my Mac need to be awake for the Calendar Alarm to work on schedule? If so, how can I make that happen?

Thanks in advance.