Errore fatale inaspettato

Un report è stato inviato per essere analizzato

Richiesta webresource non valida.

in System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest(HttpContext context) in System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() in System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) in System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)