COD Ghosts Language, and error.

Hi guys, so i bought cod ghosts in RU/CIS and used a VPN, and then i wanted to change the language from RU to EN, so i downloaded a English Language pack and replaced it, but when i load up the game
it gives me this error: FATAL ERROR Content package is no longer available.

Any FIX to this?

Probably outdated or it does not cover the region code

Hmmmm, you know a fix, cause iam lost, been searching on google for hrs....