Hier habt ihr mal die fehlermeldung
System.ArgumentNullException: Value cannot be null.
Parameter name: stream
at System.IO.StreamReader..ctor(Stream stream, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize)
at System.IO.StreamReader..ctor(Stream stream, Encoding encoding, Boolean detectEncodingFromByteOrderMarks)
at System.Web.Services.Protocols.RequestResponseUtils.ReadResponse(WebResponse response, Stream stream)
at System.Web.Services.Protocols.RequestResponseUtils.CreateResponseExceptionString(WebResponse response, Stream stream)
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.EndInvoke(IAsyncResult asyncResult)
at com.turbine.launcher.gls.GlobalLoginSystemAuthenticationService.EndLoginAccount(IAsyncResult asyncResult)
at com.turbine.launcher.Services.SOAPAuthenticator.EndAuthenticate(IAsyncResult ar)