@Labar3920 Hello! As far as I know, there is no notification for the Starlight Accolades event like there is for other events in the game. Although it's weird that it doesn't show up in your calendar at all. I'm on PC so I'm not familiar how this works on console. Have you updated your games / DLC to the latest version? Is your PS4 software up to date? If you have the most recent game and software versions, perhaps you could try reinstalling both of those packs.
Even though you're not seeing the event in the calendar, perhaps you could travel to the event anyway.
If the event doesn't occur and you're still having trouble, perhaps you could check out some of the AHQ troubleshooting tips.
https://answers.ea.com/t5/Technical-Issues-Consoles/FAQ-Sims-4-Console-Download-and-DLC-Issues/td-p/8776113