DoesPackageExist FAILED: 'None' is not a standard unreal filename or a long path name. Reason: Path should start with a '/'

I’ve been trying to compile the final version of my game for 3 days in a row but I always get that error, and try to delete the Intermediates, Saved and Build folder, but it’s still the same!
Here below I leave my log, I hope you can help me with this problemlink text