RunUAT.bat ERROR: AutomationTool was unable to run successfully

Hello Community & Epic Games,

I wanted to pack our game for testing purposes, but after some minutes I got an error message.

This is the end of the error message:

MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: KERNELBASE.dll!UnknownFunction (0x000007fefcf09e5d) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Core.dll!UnknownFunction (0x000007fee6802f7d) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Core.dll!UnknownFunction (0x000007fee6696219) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-CoreUObject.dll!UnknownFunction (0x000007feefb623e4) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-UnrealEd.dll!UnknownFunction (0x000007fee52a2c69) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-UnrealEd.dll!UnknownFunction (0x000007fee57c8d3e) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-UnrealEd.dll!UnknownFunction (0x000007fee57841da) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-UnrealEd.dll!UnknownFunction (0x000007fee57ac9f8) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Cmd.exe!UnknownFunction (0x000000013fa68c04) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Cmd.exe!UnknownFunction (0x000000013fa607ac) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Cmd.exe!UnknownFunction (0x000000013fa6090a) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Cmd.exe!UnknownFunction (0x000000013fa6e3d9) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: UE4Editor-Cmd.exe!UnknownFunction (0x000000013fa6eec1) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: kernel32.dll!UnknownFunction (0x0000000076b7652d) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: ntdll.dll!UnknownFunction (0x0000000076dac541) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: ntdll.dll!UnknownFunction (0x0000000076dac541) + 0 bytes [UnknownFile:0]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: 
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2015.04.10-00.01.52:294][  0]LogExit: Executing StaticShutdownAfterError
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2015.04.10-00.01.52:649][  0]LogWindows: FPlatformMisc::RequestExit(1)
MainFrameActions: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 1210,6220703s to run UE4Editor-Cmd.exe, ExitCode=3
MainFrameActions: Packaging (Windows (64-bit)): Project.Cook: Cook failed. Deleting cooked data.
MainFrameActions: Packaging (Windows (64-bit)): ErrorReporter.Error: ERROR: AutomationTool error: Cook failed.
MainFrameActions: Packaging (Windows (64-bit)): BuildCommand.Execute: ERROR: BUILD FAILED
MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception:
MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: Exception in AutomationScripts.Automation: BUILD FAILED: Failed while running Cook for C:\Users\Sky Haubrich\Documents\Unreal Projects\DEPORTED 4.6\DEPORTED.uproject; see log C:\Users\Sky Haubrich\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+4.6\Cook.txt
MainFrameActions: Packaging (Windows (64-bit)): Stacktrace:    bei Project.Cook(ProjectParams Params)
MainFrameActions: Packaging (Windows (64-bit)):    bei BuildCookRun.DoBuildCookRun(ProjectParams Params)
MainFrameActions: Packaging (Windows (64-bit)):    bei BuildCommand.Execute()
MainFrameActions: Packaging (Windows (64-bit)):    bei AutomationTool.Automation.Execute(List`1 CommandsToExecute, CaselessDictionary`1 Commands)
MainFrameActions: Packaging (Windows (64-bit)):    bei AutomationTool.Automation.Process(String[] CommandLine)
MainFrameActions: Packaging (Windows (64-bit)):    bei AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (Windows (64-bit)):    bei AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)
MainFrameActions: Packaging (Windows (64-bit)):    bei AutomationTool.Program.Main()
MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: BUILD FAILED: Failed while running Cook for C:\Users\Sky Haubrich\Documents\Unreal Projects\DEPORTED 4.6\DEPORTED.uproject; see log C:\Users\Sky Haubrich\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+4.6\Cook.txt
MainFrameActions: Packaging (Windows (64-bit)): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (Windows (64-bit)): Program.Main: AutomationTool exiting with ExitCode=25
MainFrameActions: Packaging (Windows (64-bit)): Domain_ProcessExit
MainFrameActions: Packaging (Windows (64-bit)): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (Windows (64-bit)): copying UAT log files...
MainFrameActions: Packaging (Windows (64-bit)): RunUAT.bat ERROR: AutomationTool was unable to run successfully.
MainFrameActions: Packaging (Windows (64-bit)): BUILD FAILED

We need your help to solve the problem, because we want to successfully pack the game when it is finished.

Thanks in advance!

With best regards
Sky Haubrich
PyxtonStudios