Aston Game

When I tried to launch Assassins Creed IV / 4 Black Flag for the first time in a few months I got this error:
AC4BFSP.exe - Entry Point Not Found
The procedure entry pint uplay_r1. UPLAY_ACH_EarnAchievement could not be located in the dynamic link library uplay_r1_loader.dll.
Is there a fix, if so what is it?

Answers 1:
First Disable Antivirus security / Another "Allow Keygen.exe " .
Second Download "Assassins Creed IV 4 Black Flag " Crack. and replace original files.

Answers 2:
First Disable Antivirus security / Another "Allow Keygen.exe " .
Create WinRAR / ZIP Archive for your AC4 Game .. All Data .. (Antivirus not detected Any Keygen and virus file on Archive file)