My UE4.26 Project Won't Package

Basically when i pack my game for Windows 64 bit it says:

UATHelper: Packaging (Windows (64-bit)):   LogContentStreaming: Display: There are 1 unreleased StreamingManagers
UATHelper: Packaging (Windows (64-bit)): Took 69.5064459s to run UE4Editor-Cmd.exe, ExitCode=1
UATHelper: Packaging (Windows (64-bit)): ERROR: Cook failed.

I Tried reading Documents, Forums, Guides But nothing I can’t package my game it would help if you could figure this out.

I Even tried duplicating the project and deleting the “Saved” folder. That didn’t work either
Please Help.