Cooking error

Please I need help to solve this, is the first time I see this kind of error and have no idea on how to solve it, the project runs perfectly during Vr test but when trying to cook it, this error pops up.

ProcessResult.StdOut: Script Stack (0 frames):
ProcessResult.StdOut:
ProcessResult.StdOut: LogWindows: Error: begin: stack for UAT
ProcessResult.StdOut: LogWindows: Error: === Critical error: ===
ProcessResult.StdOut: LogWindows: Error:
ProcessResult.StdOut: LogWindows: Error: Assertion failed: CurrentJob.bSucceeded [File:D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\Materials\MeshMaterialShader.cpp] [Line: 122]
ProcessResult.StdOut: LogWindows: Error:
ProcessResult.StdOut: LogWindows: Error:
ProcessResult.StdOut: LogWindows: Error:
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8aff4a388 KERNELBASE.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8686fcd1a UE4Editor-Core.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8684da967 UE4Editor-Core.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff868410df7 UE4Editor-Core.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff856d82c4f UE4Editor-Engine.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff856d12a76 UE4Editor-Engine.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff856d10257 UE4Editor-Engine.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff857130311 UE4Editor-Engine.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff85712d9b0 UE4Editor-Engine.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff85962c7c3 UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff85948a79b UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8594bd0bf UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff76e69ed22 UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff76e695783 UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff76e6959ea UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff76e6a48da UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff76e6a584e UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8b0663034 KERNEL32.DLL!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error: [Callstack] 0x00007ff8b30c1471 ntdll.dll!UnknownFunction ]
ProcessResult.StdOut: LogWindows: Error:
ProcessResult.StdOut: LogWindows: Error: end: stack for UAT
CommandUtils.Run: Took 39.2823431s to run UE4Editor-Cmd.exe, ExitCode=3
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Users\HausVisit\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\Cook-2018.12.02-14.35.41.txt
InternalUtils.SafeCopyFile: SafeCopyFile C:\Program Files\Epic Games\UE_4.21\Engine\Programs\AutomationTool\Saved\Cook-2018.12.02-14.35.02.txt C:\Users\HausVisit\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\Cook-2018.12.02-14.35.41.txt
InternalUtils.SafeDeleteFile: SafeDeleteFile C:\Program Files\Epic Games\UE_4.21\Engine\Programs\AutomationTool\Saved\Cook-2018.12.02-14.35.02.txt
Log.WriteException: ==============================================================================
Log.WriteException: ERROR: Cook failed.

I attached the log file if someone can undestand what’s happening