How to fix "file not found problem" ?

[DreamAngel]

When i try start the game its says me file not found. I think not found Aceonline.atm but i have that file in my game folder. Antivirus, Firewall not block this file. That problem seen on different ace online serves. How to fix this ?
Sorry for my bad English.

 

[xMasa]

And Launcher.atm ?