GRIZZLYMOXXY

So I bought this PC off my friend of bought it off a guy on Kijiji or somthing, and so I have never palyed Second life on this PC before and I used t oplay it when I was in junior high (Graduated now) , I really wanna get back into it but for seome reason i keep getting the error "You cannot acesses this from your current pc" or somthing like that, can someone help me figure this out?