Welcome to the community. 
If you paste your error message into the search box in the top-right, you’ll generally get an answer right away for the most part. For example: "These cheats were made for the 64-bit version of the game, you are running the 32-bit version" - #2 by Ravenfyre.
That being said, you also need to make sure you are using the correct trainer.
- If you own the game because you purchased it individually, you need to use this trainer: Rainbow Six Extraction Cheats and Trainer for Ubisoft.
- If you rent the game rather than own it because you have it through a Uplay+ subscription, you need you use this trainer: Rainbow Six Extraction (Uplay+) Cheats and Trainer for Ubisoft.