로그인이 안되요..

[highelf6]

로그인을 하려고하면 멈춰버리네요
왜이러는 걸까요?
다른분들은 다 잘 사용하시는것 같은데;;흑

[highelf6]

java.lang.RuntimeException: java.net.UnknownHostException: kfmes.com
at kfmes.natelib.util.HtmlReader.readUTF8(HtmlReader.java:222)
at kfmes.natelib.util.HtmlReader.<init>(HtmlReader.java:58)
at kfmes.jateon.swt.ActionGroup.actionProcessLogin(ActionGroup.java:94)
at kfmes.jateon.swt.ActionGroup.actionLogin(ActionGroup.java:138)
at kfmes.jateon.swt.MainFrame.<init>(MainFrame.java:151)
at kfmes.jateon.swt.Main.run(Main.java:125)
at kfmes.jateon.swt.Main.main(Main.java:203)
Caused by: java.net.UnknownHostException: kfmes.com
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at kfmes.natelib.util.HtmlReader.readUTF8(HtmlReader.java:169)
... 6 more

errlog.txt에 이렇게 나와있는데 무슨말인지 알수가없어서 복사해놨어요
부디 해결 부탁드려요..

[kfmes]

[highelf6]