cannot login

[superzanti]

Minecraft Mod Updater has crashed.
Please make an error report about this including everything below the line.
If you make an error report about this, I will make sure it gets fixed.
The application will try to recover from this error, if you wish.

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Application: Minecraft Mod Updater
Version: 1.3.1
API Version: 1.3.1
OS: Microsoft Windows NT 6.1.7601 Service Pack 1
Framework Version: v4.0.30319
Exception Sender: System.Threading.Thread

System.Net.WebException: The remote name could not be resolved: 'login.minecraft.net'
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at ModUpdater.Utility.LoginManager.Login(String password, String[]& output)
at ModUpdater.Client.GUI.LoginForm.VerifyAccount(String& error)
at ModUpdater.Client.GUI.LoginForm.startmc_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)