Your app crashed because of System.AccessViolationException Your app, psagot-app-service, crashed because of System.AccessViolationException and aborted the requests it was processing when the overflow occurred. As a result, your app’s users may have experienced HTTP 502 errors. This call stack caused the exception: ------Remote Stack Trace String -------- at trn.Filters.Filter.WriteToFile at pdftron.Filters.Filter.WriteToFile at Services.Convertions.AttachmentViewerConverter.ConvertPDFToXOD at Services.Convertions.ConvertionHandler.TryHandleDocument at Web.Controllers.Meetings.MeetingTopicDocumentsController.UploadDocuments at lambda_method at System.Web.Mvc.ReflectedActionDescriptor.Execute at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod at System.Web.Mvc.Async.AsyncControllerActionInvoker.b__39 at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.b__3d at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.b__3f at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.b__3f at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.b__3f at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<>c__DisplayClass2b.b__1c at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.b__1e at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction at System.Web.Mvc.Controller.b__1d at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate at System.Web.Mvc.Controller.EndExecuteCore at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate at System.Web.Mvc.Controller.EndExecute at System.Web.Mvc.MvcHandler.b__5 at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate at System.Web.Mvc.MvcHandler.EndProcessRequest at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute at System.Web.HttpApplication.<>c__DisplayClass285_0.b__0 at System.Web.HttpApplication.ExecuteStepImpl at System.Web.HttpApplication.ExecuteStep at System.Web.HttpApplication.PipelineStepManager.ResumeSteps at System.Web.HttpApplication.BeginProcessRequestNotification at System.Web.HttpRuntime.ProcessRequestNotificationPrivate at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper