Data can't be found locally

When I finished my UEFN session yesterday, I decided to move all my file projects to a folder called Fortnite. When I started up the unreal editor today my projects are nowhere to be found. Were they deleted in the process? Is there something I can do?
(the photo shows the message I get when I clicked on one of my maps that have been lost)
(they were converted from creative 1.0)

Hello,

You probably just need to ‘Browse’ to the location that you moved your projects to. (You’ll see this button on the bottom of the project browser when you start UEFN)