Fortnite Error Message Can't Start Game?

I wanted to play Fortnite again for a long time. When I downloaded the game again, I get the following error message:

"An update is required to continue. Please restart Fortnite to download the latest patch."

I restarted the game several times and it doesn't work. I also checked the game for updates and restarted my Playstation. Nothing helps I hope someone can help

Known error. You have to delete the update first.

It's not Fortnite, it's the PS4. It choked on the last update, but if you deleted it, it can start the program…

How can I delete the update?

I do not know by heart, please search in the options.

Possibly Messages> Downloads?
Or search the internet for: open ps4 download list.