Getting an Error like There is an error in XML document (1, 1480) while Reading XML from Webresource

HI i have used following code to read xml webresource in CMR but i am getting an Error like There is an error in XML document (1, 1480) while Reading XML from Webresource

Uri organizationuri = new Uri(".../XRMServices/2011/Organization.svc");

           Uri homeRealmUri = null;

           /*Live CRM*/

           var deviceIDcreds = new ClientCredentials();

           deviceIDcreds.UserName.UserName = "11pqlm4ldg5nqps9b4ivlngbfv";

           deviceIDcreds.UserName.Password = "J-n60IBG7h;Ga`b5##SsDQhP";

           /*Live CRM*/

           var liveIDCreds = new ClientCredentials();

           liveIDCreds.UserName.UserName = "username";

           liveIDCreds.UserName.Password = "password";

           _serviceProxy = new OrganizationServiceProxy(organizationuri, homeRealmUri, liveIDCreds, deviceIDcreds);

           _service = (IOrganizationService)_serviceProxy;

           orgContext = new OrganizationServiceContext(_serviceProxy);

TextWriter output=File.CreateText("C:\\perl.txt");

           Uri organizationuri = new Uri("..../XRMServices/2011/Organization.svc");

           SoapLoggerOrganizationService slos = new SoapLoggerOrganizationService(organizationuri, _service);

           RetrieveMultipleRequest rmr = new RetrieveMultipleRequest();

           RetrieveMultipleResponse resp = new RetrieveMultipleResponse();

           WebResource wb = new WebResource();

           QueryExpression query = new QueryExpression()

           {

               EntityName = "webresource",

               ColumnSet = new ColumnSet("content"),

               Criteria = new FilterExpression

               {

                   FilterOperator = LogicalOperator.And,

                   Conditions =

               {

                   new ConditionExpression

                   {

                       AttributeName = "webresourceid",

                       Operator = ConditionOperator.Equal,

                       Values = { "D161DA9A-B0A5-E211-97F2-D8D3855B15BD" }

                   }

               }

               }

           };

           rmr.Query = query;

           resp = (RetrieveMultipleResponse)slos.Execute(rmr); //Getting an Error Here

           wb = (WebResource)resp.EntityCollection.Entities[0];

           byte[] b = Convert.FromBase64String(wb.Content);

           //**************************************

           //The string below will contain your HTML

           //**************************************

           string strHTML = System.Text.Encoding.UTF8.GetString(b);

and I am getting an Error in line resp = (RetrieveMultipleResponse)slos.Execute(rmr);

my XML file is like this

<root name="account">

 <node cId="1ae50746-619c-e211-9b22-d8d3855b354e" cName="A. Datum Corporation (sample)" pId="00000000-0000-0000-0000-000000000000" pName="" />

 <node cId="0ee50746-619c-e211-9b22-d8d3855b354e" cName="Adventure Works (sample)" pId="00000000-0000-0000-0000-000000000000" pName="" />

 <node cId="18e50746-619c-e211-9b22-d8d3855b354e" cName="Alpine Ski House (sample)" pId="00000000-0000-0000-0000-000000000000" pName="" />

 </root>