Rust Crash & Error

Im having issues with my client, while im playing sometimes i get a crash and here appears this message on windows http://snag.gy/HYy0N.jpg sometimes i have the crash but the message doesn’t appears, i have 16 gb ram so i think it can’t be a problem of my memory cards, and its the only game that i have a problem like this, my operating system and specs: http://snag.gy/JN8CN.jpg. Thanks.