Firstly, always search these forums, before making a post, as the chances are your question has already been asked and answered before!
You get this error because of emulation software on your computer. There are many things you can do to solve your problem.
Have a read thru
this thread and also on
this site. You will find various methods to fix your problem.
But in future please so a 'Search' of the forums first and post in the threads which have already been started.
Thread Closed! (use the other Hitman thread)