Event ID 3

We keep getting the following error on our SP production farm: Any help would be greatly appreciated.

WebHost failed to process a request.
 Sender Information: System.ServiceModel.Activation.HostedHttpRequestAsyncResult/[RANDOMNUMBER]
 Exception: System.Web.HttpException: The service '/Workflows/Dispostition Workflow/Workflow 1.xoml' does not exist. ---> System.ServiceModel.EndpointNotFoundException: The service '/Workflows/Dispostition Workflow/Workflow 1.xoml' does not exist.
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
   at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath)
   at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest()
   at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()
   --- End of inner exception stack trace ---
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
 Process Name: w3wp

 Process ID: 756