Unknown Package Error: Need Urgent Help

I had a problem to make a PACKAGE PACKING since yesterday. Anyone knows what is the error in this code?This is the Output Log Code:
LogEditorTransaction: Undo Spawn Play From Here Start
LogDesktopPlatform:Warning: Error reading results of folder dialog.
LogSavePackage: Save=2620.96ms
LogSavePackage: Moving ‘…/…/…/…/…/…/Users/PCGerard/Desktop/projecte clase/24-5-Leukos(pre-cena)/24-5-Leukos(pre-cena)/Saved/UEDPCNivell1C9AFB674B7191E47047FAA03FA8B8E7.tmp’ to ‘…/…/…/…/…/…/Users/PCGerard/Desktop/projecte clase/24-5-Leukos(pre-cena)/24-5-Leukos(pre-cena)/Saved/Autosaves/Game/Maps/UEDPCNivell.umap’
LogSavePackage:Display: Finished SavePackage …/…/…/…/…/…/Users/PCGerard/Desktop/projecte clase/24-5-Leukos(pre-cena)/24-5-Leukos(pre-cena)/Saved/Autosaves/Game/Maps/UEDPCNivell.umap
LogEditorTransaction: Undo Spawn Play From Here Start
UATHelper: Packaging (Windows (32-bit)): Running AutomationTool…
UATHelper: Packaging (Windows (32-bit)): Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=“C:/Users/PCGerard/Desktop/projecte clase/24-5-Leukos(pre-cena)/24-5-Leukos(pre-cena)/CustomGravityProject.uproject” BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=“C:/Users/PCGerard/Desktop/projecte clase/24-5-Leukos(pre-cena)/2
4-5-Leukos(pre-cena)/CustomGravityProject.uproject” -cook -stage -archive -archivedirectory=C:/Users/PCGerard/Desktop/Exe -package -clientconfig=Development -ue4exe=UE4Editor-Cmd.exe -clean -compressed -pak -prereqs -nodebuginfo -targetplatform=Win32 -build -CrashReporter -utf8output
UATHelper: Packaging (Windows (32-bit)): Automation.Process: Setting up command environment.
UATHelper: Packaging (Windows (32-bit)): WindowsPlatform.get_Compiler: WARNING: Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that “Common Tools for Visual C++ 2015” was selected when installing Visual Studio 2015.
UATHelper: Packaging (Windows (32-bit)): BuildCookRun.SetupParams: Setting up ProjectParams for C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject
UATHelper: Packaging (Windows (32-bit)): Project.Build: ********** BUILD COMMAND STARTED **********
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: C:\Program Files (x86)\Epic Games\4.13\Engine\Binaries\DotNET\UnrealBuildTool.exe CustomGravityProject Win32 Development -Project=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” -clean “C:\Users\PCGerard\Desktop\projecte clase
24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” -remoteini=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)” -nobuilduht -NoHotReload
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Performing full C++ include scan (building a new target)
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that “Common Tools for Visual C++ 2015” was selected when installing Visual Studio 2015.
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: Took 1,7687038s to run UnrealBuildTool.exe, ExitCode=0
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: C:\Program Files (x86)\Epic Games\4.13\Engine\Binaries\DotNET\UnrealBuildTool.exe CustomGravityProject Win32 Development -Project=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” “C:\Users\PCGerard\Desktop\projecte clase\24-5-L
eukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” -remoteini=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)” -noxge -generatemanifest -NoHotReload -ignorejunk
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that “Common Tools for Visual C++ 2015” was selected when installing Visual Studio 2015.
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: Took 2,0549658s to run UnrealBuildTool.exe, ExitCode=0
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: C:\Program Files (x86)\Epic Games\4.13\Engine\Binaries\DotNET\UnrealBuildTool.exe CustomGravityProject Win32 Development -Project=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProj
UATHelper: Packaging (Windows (32-bit)): ect.uproject” “C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” -remoteini=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)” -noxge -NoHotReload -ignorejunk
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Creating makefile for CustomGravityProject (no existing makefile)
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Performing full C++ include scan (no include cache file)
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that “Common Tools for Visual C++ 2015” was selected when installing Visual Studio 2015.
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Parsing headers for CustomGravityProject
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Running UnrealHeaderTool “C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” “C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\Intermediate\Build\Win32\CustomGravityProject\Development\CustomGravityP
roject.uhtmanifest” -LogCmds=“loginit warning, logexit warning, logdatabase error” -Unattended -WarningsAsErrors -installed
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: LogPluginManager:Error: This project requires the ‘Substance’ plugin. Install it and try again, or remove it from the project’s required plugin list.
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: LogCompile:Error: Failed to initialize the engine (PreInit failed).
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: Error: Failed to generate code for CustomGravityProject - error code: CrashOrAssert (3)
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: UnrealHeaderTool failed for target ‘CustomGravityProject’ (platform: Win32, module info: C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\Intermediate\Build\Win32\CustomGravityProject\Development\CustomGravityProject.uhtmanifest).
UATHelper: Packaging (Windows (32-bit)): CommandUtils.Run: Run: Took 4,6022493s to run UnrealBuildTool.exe, ExitCode=3
UATHelper: Packaging (Windows (32-bit)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.CommandUtils+CommandFailedException: Command failed (Result:3): C:\Program Files (x86)\Epic Games\4.13\Engine\Binaries\DotNET\UnrealBuildTool.exe CustomGravityProject Win32 Development -Project=“C:\Users\PCGerard\Desktop\projecte clase\24-5-
Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” “C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)\CustomGravityProject.uproject” -remoteini=“C:\Users\PCGerard\Desktop\projecte clase\24-5-Leukos(pre-cena)\24-5-Leukos(pre-cena)” -noxge -NoHotReload -ignorejunk. See logfile for details: ‘UnrealBuildToo
l-2017.05.25-17.40.22.txt’
UATHelper: Packaging (Windows (32-bit)): en AutomationTool.CommandUtils.RunAndLog(String App, String CommandLine, String Logfile, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars, SpewFilterCallbackType SpewFilterCallback) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.CommandUtils.RunAndLog(CommandEnvironment Env, String App, String CommandLine, String LogName, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars, SpewFilterCallbackType SpewFilterCallback)
UATHelper: Packaging (Windows (32-bit)): en AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, String CommandLine, String LogName, Dictionary2 EnvVars) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, FileReference Project, String Target, String Platform, String Config, String AdditionalArgs, String LogName, Dictionary2 EnvVars)
UATHelper: Packaging (Windows (32-bit)): en AutomationTool.UE4Build.BuildWithUBT(String TargetName, UnrealTargetPlatform TargetPlatform, String Config, FileReference UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, String InAddArgs, Boolean ForceUnity, Dictionary2 EnvVars) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.UE4Build.Build(BuildAgenda Agenda, Nullable1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boolean InForceUnity, Boolean InShowProgress, Dictionary2 PlatformEnvVars, Nullable1 InChangelistNumberOverride, Dictio
nary2 InTargetToManifest) UATHelper: Packaging (Windows (32-bit)): en Project.Build(BuildCommand Command, ProjectParams Params, Int32 WorkingCL, ProjectBuildTargets TargetMask) UATHelper: Packaging (Windows (32-bit)): en BuildCookRun.DoBuildCookRun(ProjectParams Params) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.BuildCommand.Execute() UATHelper: Packaging (Windows (32-bit)): en AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.Automation.Process(String[] Arguments) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.Program.MainProc(Object Param) UATHelper: Packaging (Windows (32-bit)): en AutomationTool.InternalUtils.RunSingleInstance(Func2 Main, Object Param)
UATHelper: Packaging (Windows (32-bit)): en AutomationTool.Program.Main()
UATHelper: Packaging (Windows (32-bit)): Program.Main: AutomationTool exiting with ExitCode=3 (Error_UnknownCommand)
UATHelper: Packaging (Windows (32-bit)): BUILD FAILED
PackagingResults:Error: Error Unknown Command