Please Help Me :: I can't add my language (thai) in client S8

I Test This Server

http://forum.ragezone.com/f197/zteam...video-1055676/

I can add my language (thai) in client
but i can't try

https://www.img.in.th/images/15e774b...20177b6356.jpg

Pls Help me

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Sorry i very bad english

please help

i also want to know

step