I know a few others have had this error.
The only advise I can give is to update all drivers/OS, use 7zip to unpack, install Microsoft Visual C++ Redistributable and try to redownload the game. Seems to be an Unreal Engine error some experience and I don't know exactly why (when googling you can often find others with similar errors for other Unreal games).
If anything helps please report it back to let others know what works.