What version of Fortnite did you offload? Was this before or after the release of Party Hub?
This thread was added on September 24, 2019, with posts from EPIC_Drewbeee.
Original Post
https://i.redd.it/97uhzc761go31.jpg
After party hub. The messages are people trying to send me invites, but the app isn't installed so it just says "title body".
Thank you for this information!