Unable to start?

[Cyberdragon 20]

Hey.

I went on Wurm today, and it read "Unable to launch application". After clicking details, it reads this:

java.net.UnknownHostException: www.wurmonline.com

at java.net.AbstractPlainSocketImpl.connect(Unknown Source)

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 com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)

at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)

at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)

at com.sun.deploy.cache.ResourceProviderImpl.checkUpdateAvailable(Unknown Source)

at com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(Unknown Source)

at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)

at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)

at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)

at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)

at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)

at com.sun.javaws.Launcher.launch(Unknown Source)

at com.sun.javaws.Main.launchApp(Unknown Source)

at com.sun.javaws.Main.continueInSecureThread(Unknown Source)

at com.sun.javaws.Main.access$000(Unknown Source)

at com.sun.javaws.Main$1.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

 

What does this mean and what do I have to do?

[Cyberdragon 20]

Oh, and it only gets better. The client frequently freezes and it says that Wurm is not responding.

[ago 470]

java.net.UnknownHostException: www.wurmonline.com

Your computer can't resolve the host name to an internet address. This could be a temporary problem with your internet provider. If the problem persists try using an alternative DNS service like google DNS: https://developers.google.com/speed/public-dns/