Cooking Fails: BulkData compressed header

Crash Report found here, primarily using some assets and the

UATHelper: Cooking (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread PoolThread 16 crashed.
UATHelper: Cooking (Windows (64-bit)):   LogWindows: Error: begin: stack for UAT
UATHelper: Cooking (Windows (64-bit)):   LogWindows: Error: === Critical error: ===
UATHelper: Cooking (Windows (64-bit)):   LogWindows: Error:
UATHelper: Cooking (Windows (64-bit)):   LogWindows: Error: Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Private/Serialization/Archive.cpp] [Line: 724]
UATHelper: Cooking (Windows (64-bit)):   LogWindows: Error: BulkData compressed header read error. This package may be corrupt!

Please if anyone can help me fix this… you are the best :D, this is my first big game and I haven’t experienced this before.