Is the language pack broken?

I installed the game, but it shows initialization failed when started running . if I exchange the Data.pack which is under "C:\Aion Epic\Aion Epic\L10N\1_enu\data " by Russian data.pack, it can be work. so that means the English language pack is broken? where can I download it?

i have uploaded the data.pak file in my game folder, you can download it here ,http://www.mediafire.com/file/kcnm0e3u6wlyk49/data.pak/file
if problem still persists, download and install this https://www.microsoft.com/en-us/download/details.aspx?id=6812

Thank you, but still not work even I installed DirectX , it's really strange......