UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: 'None' is not a standard unreal filename or a long path name. Reason: Path should start with a '/'

hi everyone
I’m having this error while packaging the game (in the cooking process)

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: ‘None’ is not a standard unreal filename or a long path name. Reason: Path should start with a ‘/’

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogSpawn: Warning: Streaming level uses short package name (None). Level will not be loaded.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogScript: Warning: Script Msg: Divide by zero detected: 0.000000 / 0

UATHelper: Packaging (Windows (64-bit)): Script call stack:

Plz help me…