Plutonium

Dear all, hoping you are well, I am contacting you because I downloaded the game Black Ops 1. My friend got this game from an old Plutonium page and it runs normally for him. I downloaded it and I get the error shown in the attached photo. Black Ops 2 works for me normally, please help. P.S.: If you notice the wording is strange, it's because I translated it with AI.!