I am having a problem in creating a CRM entity using CRM SDk from the backend.
The code works well if I run it from Visual Studio enviromnment.
But when I call it from an iframe reference in CRM it gives me the following error.

Line 40: [return: System.Xml.Serialization.XmlElementAttribute("Response", Namespace="http://schemas.microsoft.com/crm/2006/WebServices")]
Line 41: public Response Execute([System.Xml.Serialization.XmlElementAttribute(Namespace="http://schemas.microsoft.com/crm/2006/WebServices")] Request Request) {
Line 42: object[] results = this.Invoke(“Execute”, new object[] {
Line 43: Request});
Line 44: return ((Response)(results[0]));

Source File: C:\Inetpub\wwwroot\VDBCrmApplication\Web References\CrmSdk\Reference.cs Line: 42

Stack Trace:

[SoapException: Server was unable to process request.]
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) +1496
System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) +217
VDBCrmApplication.CrmSdk.CrmService.Execute(Request Request) in C:\Inetpub\wwwroot\VDBCrmApplication\Web References\CrmSdk\Reference.cs:42
VDBCrmApplication.VDB_EventSession.createtempsession() in c:\inetpub\wwwroot\vdbcrmapplication\vdb_eventsession.aspx.cs:236
VDBCrmApplication.VDB_EventSession.CreateUpdateTempSession(String TmpSession) in c:\inetpub\wwwroot\vdbcrmapplication\vdb_eventsession.aspx.cs:160
VDBCrmApplication.VDB_EventSession.DataGrid_Update(Object Source, DataGridCommandEventArgs E) in c:\inetpub\wwwroot\vdbcrmapplication\vdb_eventsession.aspx.cs:143
System.Web.UI.WebControls.DataGrid.OnUpdateCommand(DataGridCommandEventArgs e) +109
System.Web.UI.WebControls.DataGrid.OnBubbleEvent(Object source, EventArgs e) +507
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.DataGridItem.OnBubbleEvent(Object source, EventArgs e) +106
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +121
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +138
System.Web.UI.Page.ProcessRequestMain() +1292

Please help me out.