Map disappeared from project

Hello, I spent a lot of hours creating a map for my open world game, Last night everything was working great and I saved the project and shut down my pc. This morning when I went to open up the level it wasn’t showing up in the editor. I checked the windows explorer and it was showing up in it.

I have tried using the backup of my level found in the saved folder,
I have tried putting the level into another project and seeing if it shows in it, but it didnt
I have tried making a new level and overwriting it.
All failed. I would appreciate any advice, tips or fixes :slight_smile:
Thank you.