This error appears to players who are not signed in with their Epic Games Store account, or if the Epic Games Store services are undergoing maintenance.
Relaunching the Epic Games Store and then Destiny 2 should resolve this issue.
Players who repeatedly encounter this issue should check the status of their Epic's services by following the link below. If no outage or maintenance has been reported, and this error continues to occur, please create a new topic in the Help forums.
Epic Games Store Status: https://status.epicgames.com/
