To verify the integrity of game files (Red Dead Redemption 2)

Hello!
I bought the game in EGS with a discount for 1750r. Now I am suffering!
Please help! When you start is check for updates, direct x 12 and then the error message red dead redemption 2 to verify the integrity of the file. I checked as much as 2 times not even a Fig. All the same writes!
What to do now ?