The game crash

A small new update is available now!

    The game crash when I try to start the game , a black window appear my computer tell me there is an error and the game cant launch I am using Windows 7 ultimate ,64bts

    Please have a look if there is a file called "errorlog" or "hs_err_pid" in your game directory (steamversion: rightclick on rw in steam -> properties -> local files -> browse local files). If there is such a file, please upload it or post the content here