How can I solve these errors when packaging game?

Hello everyone, I have been working on a project for quite a while now using some of Epic’s free to use assets. I have spent the last few days trying to figure out why I cant seem to package the game but I havent been able to find a solution anywhere.

Here are last few lines that i get in the output log before it says “PackagingResults: Error: Unknown Cook Failure”

Any help would be very much appreciated!
Thanks in advance.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LoadErrors: Error: The Skeleton UE4_Mannequin_Skeleton is missing bones that SkeletalMesh Trooper_Full_NoKnife needs. They will be added now. Please save the Skeleton!

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOnline: Warning: STEAM: Steam API disabled!

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: CookResults: Warning: Unable to find package for cooking /Game/MP_sub/MainBP/MenuGM

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogCook: Warning: Unable to find package for cooking /Game/MP_sub/MainBP/MenuGM

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogBlueprint: Warning: [Compiler SteelPlayerCharacter] InputAction Event references unknown Action ‘ResetVR’ for InputAction ResetVR

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogBlueprint: Warning: [Compiler SteelPlayerCharacter] [0053.64] Compile of SteelPlayerCharacter successful, but with 1 Warning(s) [in 50 ms] (/Game/ParagonSteel/Characters/Heroes/Steel/SteelPlayerCharacter.SteelPlayerCharacter)

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Warning: String asset reference “Env_Ice_RuinedWalls001” is in short form, which is unsupported and – even if valid – resolving it will be really slow.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Warning: Please consider resaving package in order to speed-up loading.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Warning: String asset reference “Env_Ice_RuinedWalls001” could not be resolved.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Warning: String asset reference “Env_Ice_Rocky.Mesh.Env_Ice_RuinedSteps001” is in short form, which is unsupported and – even if valid – resolving it will be really slow.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Warning: String asset reference “Env_Ice_Rocky.Mesh.Env_Ice_RuinedSteps001” could not be resolved.

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:

UATHelper: Packaging (Windows (64-bit)): Function /Game/ParagonSteel/Characters/Heroes/Steel/Steel_AnimBlueprint.Steel_AnimBlueprint_C:BlueprintUpdateAnimation

UATHelper: Packaging (Windows (64-bit)): Function /Game/ParagonSteel/Characters/Heroes/Steel/Steel_AnimBlueprint.Steel_AnimBlueprint_C:ExecuteUbergraph_Steel_AnimBlueprint

UATHelper: Packaging (Windows (64-bit)):

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogBlueprint: Warning: [Compiler ThirdPersonCharacter] InputAction Event references unknown Action ‘ResetVR’ for InputAction ResetVR

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogBlueprint: Warning: [Compiler ThirdPersonCharacter] [0627.72] Compile of ThirdPersonCharacter successful, but with 1 Warning(s) [in 8 ms] (/Game/ThirdPersonBP/Blueprints/ThirdPersonCharacter.ThirdPersonCharacter)

UATHelper: Packaging (Windows (64-bit)): LogInit: Display:

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: Failure - 1 error(s), 15 warning(s)

UATHelper: Packaging (Windows (64-bit)): LogInit: Display:

UATHelper: Packaging (Windows (64-bit)):

UATHelper: Packaging (Windows (64-bit)): Execution of commandlet took: 878.84 seconds

UATHelper: Packaging (Windows (64-bit)): Took 932.1509081s to run UE4Editor-Cmd.exe, ExitCode=1

UATHelper: Packaging (Windows (64-bit)): ERROR: Cook failed.

UATHelper: Packaging (Windows (64-bit)): (see C:\Users\Toby\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\Log.txt for full exception trace)

UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)

UATHelper: Packaging (Windows (64-bit)): BUILD FAILED

PackagingResults: Error: Unknown Cook Failure

Have you solved it ?