Urgent ASAP Fix Help Failed to Open Level

we have been working on an game for the past 24 days and now the level blueprint has decided to fail and not open we need it back ASAP can anyone help to recover and fix the error for us it’s for my university project and I don’t Want to do it all over again

I dont want to do it all over again

Read the error. The editor is unable to find the asset named “Leafs_Leafs”.
Probably the asset was moved or deleted. Use the content browser to find that asset, if the asset was moved you can just move the asset in the correct path.
Otherwise if the content browser shows no result it means that the asset was deleted.
In that case, if you have the original file, just reimport it.

There are other error messages displayed under

Map Check (1)
asset reimport (5)
FBX import (1)

could you share those with us? esp. the map check error

I deleted the files because I’m not using them anymore

I deleted the items because I’m not using them