I have a problem opening the project

It says this:

¡Error when opening the map!
…/…/…/…/…/Unreal Projects/FPS/Content/ThirdPersonBP/Maps/Lobby.umap seems like an active file.

Idk what happened the engine crashed and I reopened the project again and it appeared this and now my project is broken.

And all files i had like widgets and blueprints are broken now.

Someone can close this now because i deleted all the project and i need to start from the begining now ;(

I think there might be a limit on the directory size in terms of character count…