I can't play

I'm a player from Vietnam. Today I download CF Z8 by CrossFire Downloader. After downloaded, I install to my computer. When I click the "Start" button on CF Launcher, 1 error announcement appeared : "Your Client Is Invalid Version. Re-install the latest version game client." although I installed the lastest version was downloaded by CrossFire Downloader. Please help T_T. Thanks so much!