Many functions down in our PROD environment any help appreciated

Trace when trying to export to excel a User.


SELECT [r_MUIUserScreenRelevance].[UserID] AS [MUIUserScreenRelevance_UserID], [r_MUIUserScreenRelevance].[NodeID] AS [MUIUserScreenRelevance_NodeID], [r_MUIUserScreenRelevance].[Relevance] AS [MUIUserScreenRelevance_Relevance]
FROM [MUIUserScreenRelevance] [r_MUIUserScreenRelevance]
WHERE [r_MUIUserScreenRelevance].[UserID] = CONVERT(UNIQUEIDENTIFIER, '90ba6009-e2ed-4c7a-be62-a48abe825838') AND ( [r_MUIUserScreenRelevance].[CompanyID] = 4)
ORDER BY [r_MUIUserScreenRelevance].[UserID], [r_MUIUserScreenRelevance].[NodeID] OPTION(OPTIMIZE FOR UNKNOWN)

   at Serilog.Core.Logger.Write(LogEventLevel level, Exception exception, String messageTemplate, Object[] propertyValues)
   at Serilog.Core.Logger.Information[T](String messageTemplate, T propertyValue)
   at PX.Data.PXDatabaseProviderBase.Select(PXGraph graph, BqlCommand command, Int64 skip, Int64 topCount, PXView view, PXDataValue[] pars)
   at PX.Data.PXDatabaseProvider.Select(PXGraph graph, BqlCommand command, Int64 topCount, PXView view, PXDataValue[] pars)
   at PX.Data.PXGraph.ProviderSelect(BqlCommand command, Int32 topCount, PXView view, PXDataValue[] pars)
   at PX.Data.PXView.GetResult(Object[] parameters, PXFilterRow[] filters, Boolean reverseOrder, Int32 topCount, PXSearchColumn[] sorts, Boolean& overrideSort, Boolean& extFilter)
   at PX.Data.SQLTree.SQLinqView.GetResult(Object[] parameters, PXFilterRow[] filters, Boolean reverseOrder, Int32 topCount, PXSearchColumn[] sorts, Boolean& overrideSort, Boolean& extFilter)
   at PX.Data.PXView.Select(Object[] currents, Object[] parameters, Object[] searches, String[] sortcolumns, Boolean[] descendings, PXFilterRow[] filters, Int32& startRow, Int32 maximumRows, Int32& totalRows)
   at PX.Data.SQLTree.SQLinqExecutor.ExecuteCollection[T](Query query, SQLinqBqlCommandInfo info, PXGraph graph, SQLinqExecutor linqExecutor)
   at PX.Data.SQLTree.SQLinqExecutor.ExecuteCollection[T](Query query, PXGraph graph)
   at PX.Data.SQLTree.SQLinqExecutor.ExecuteCollection[T](QueryModel queryModel)
   at Remotion.Linq.Clauses.StreamedData.StreamedSequenceInfo.ExecuteQueryModel(QueryModel queryModel, IQueryExecutor executor)
   at Remotion.Linq.QueryProviderBase.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at Remotion.Linq.QueryableBase`1.GetEnumerator()
   at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
   at PX.Web.UI.Frameset.Services.SiteMapPersonalizationService.GetSiteMapNodeRelevance()
   at lambda_method(Closure , Object , Object[] )
   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass6_2.b__2(Object instance, Object[] methodParameters)
   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
   at System.Web.Http.Controllers.ApiControllerActionInvoker.d__1.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsyncCore(HttpActionContext actionContext, CancellationToken cancellationToken)
   at System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsync(HttpActionContext actionContext, CancellationToken cancellationToken)
   at System.Web.Http.Controllers.ActionFilterResult.<>c.b__5_0(ActionInvoker innerInvoker)
   at System.Web.Http.Controllers.ActionFilterResult.<>c__DisplayClass7_0`1.b__0()
   at System.Web.Http.Filters.ActionFilterAttribute.d__6.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Filters.ActionFilterAttribute.CallOnActionExecutedAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation)
   at System.Web.Http.Filters.ActionFilterAttribute.d__5.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Filters.ActionFilterAttribute.ExecuteActionFilterAsyncCore(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation)
   at System.Web.Http.Filters.ActionFilterAttribute.System.Web.Http.Filters.IActionFilter.ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation)
   at System.Web.Http.Controllers.ActionFilterResult.d__5.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Controllers.ActionFilterResult.ExecuteAsync(CancellationToken cancellationToken)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.ExecuteAuthorizationFilterAsyncCore(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.System.Web.Http.Filters.IAuthorizationFilter.ExecuteAuthorizationFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation)
   at System.Web.Http.Controllers.AuthorizationFilterResult.ExecuteAsync(CancellationToken cancellationToken)
   at System.Web.Http.ApiController.ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancellationToken)
   at System.Web.Http.Dispatcher.HttpControllerDispatcher.d__15.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at PX.Api.Compression.ServerCompressionHandler.d__10.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at PX.Api.Compression.ServerCompressionHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Web.Http.HttpServer.d__24.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.HttpServer.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Web.Http.Owin.HttpMessageHandlerAdapter.d__20.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at System.Web.Http.Owin.HttpMessageHandlerAdapter.InvokeCore(IOwinContext context, IOwinRequest owinRequest, IOwinResponse owinResponse)
   at PX.Owin.Startup.<b__12_5>d.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at PX.Owin.Startup.b__12_5(IOwinContext ctx, Func`1 next)
   at PX.Logging.Enrichers.OwinExtensions.<>c.<b__0_0>d.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at PX.Logging.Enrichers.OwinExtensions.<>c.b__0_0(IOwinContext ctx, Func`1 next)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Mapping.MapWhenMiddleware.Invoke(IDictionary`2 environment)
   at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.d__7.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.RunApp(Func`2 entryPoint, IDictionary`2 environment, TaskCompletionSource`1 tcs, StageAsyncResult result)
   at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent(Object sender, EventArgs e, AsyncCallback cb, Object extradata)
   at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.<>c__DisplayClass285_0.b__0()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
   at System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error)
   at System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb)
   at System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context)
   at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)
   at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)

“Restart Application” in all sites resolved the issues.

Still looking for root cause.

Try to restart the System and if still not worked then clear cache and try to open in another browser.

I hope it would work