web application error

Hi,

Can anyone help me regards with web application error?

Sophos.UIController.Extension.UIControllerException: Could not retrieve data (Internal communication error). Please refer to knowledgebase article 114292. ---> System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at http://wahc-app/Sophos/Management/WebControl/WebControlFrontEndService that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. ---> System.Net.WebException: The remote server returned an error: (404) Not Found.
   at System.Net.HttpWebRequest.GetResponse()
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
   --- End of inner exception stack trace ---

Server stack trace:
   at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
   at System.ServiceModel.Security.SspiNegotiationTokenProvider.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.CommunicationObjectSecurityTokenProvider.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SecurityUtils.OpenTokenProviderIfRequired(SecurityTokenProvider tokenProvider, TimeSpan timeout)
   at System.ServiceModel.Security.SymmetricSecurityProtocol.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.SecurityChannelFactory`1.ClientSecurityChannel`1.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.DoOperation(SecuritySessionOperation operation, EndpointAddress target, Uri via, SecurityToken currentToken, TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.GetTokenCore(TimeSpan timeout)
   at System.IdentityModel.Selectors.SecurityTokenProvider.GetToken(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
   at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Sophos.WebControl.FrontEnd.IWebControlFrontEndService.LoadPolicy(String contentTag)
   at Sophos.WebControl.FrontEnd.WebControlFrontEndServiceProxy.LoadPolicy(String contentTag)
   at Sophos.WebControl.UI.ViewModels.WebControlViewModel..ctor(IWebControlUILogger uiLogger, String contentTag, IPolicyCallback policyCallback, IDialogueService dialogueService, Boolean isEditable)
   --- End of inner exception stack trace ---
   at Sophos.WebControl.UI.ViewModels.WebControlViewModel..ctor(IWebControlUILogger uiLogger, String contentTag, IPolicyCallback policyCallback, IDialogueService dialogueService, Boolean isEditable)
   at Sophos.WebControl.UI.WebControlPolicyHandler.LaunchPolicyEditor(IntPtr parent, String name, String contentTag, IPolicyCallback policyCallback, Boolean editable)
   at Sophos.WebControl.UI.WebControlPolicyHandler.Edit(IntPtr parent, String name, String contentTag, IPolicyCallback policyCallback)
   at Sophos.UIController.Product.Policy.<>c__DisplayClass7.<EditPolicy>b__6()
   at Sophos.UIController.Product.Logging.LogMethod(MemberInfo method, Action func)
   at Sophos.UIController.Product.Policy.EditPolicy(IntPtr parent, String name, String contentTag, IPolicyCallback policyCallback)

----- [outer exception] -----
   -- error: 0x80040507
   -- facility: Custom (Defined by the interface)

   at void __thiscall PolicyDialogViewer::ShowPolicy(struct ISMT_Policy *,class ATL::CWindow,const class bl::UIPermissions &,unsigned long,const class ProductReleaseData &,const class TranslationService &)
   at __w64 long __thiscall CPolicyTreeCtrl::OnEditPolicy(unsigned int,__w64 unsigned int,__w64 long,int &)
   at int __cdecl Run(int,class bl::CommandLine,enum bl::ConsoleType::Type)
   at int __stdcall wWinMain(struct HINSTANCE__ *,struct HINSTANCE__ *,wchar_t *,int)

Thanks,

Teddy