System.ArgumentNullException: Value cannot be null. (Parameter 'source') at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Gealan.Domain.Services.Pages.RelatedReferencesService.<>c__DisplayClass5_0.b__1(RelatedReferences contentItem) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Domain\Gealan.Domain.Services\Pages\RelatedReferencesService.cs:line 72 at System.Collections.Generic.List`1.ForEach(Action`1 action) at Gealan.Domain.Services.Pages.RelatedReferencesService.GetContentItems(Int32 siteId, String culture, Int32 nodeParentId) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Domain\Gealan.Domain.Services\Pages\RelatedReferencesService.cs:line 72 at Gealan.Domain.Services.Pages.ContentItemService.GetContentItems(PageInfo pageInfo) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Domain\Gealan.Domain.Services\Pages\ContentItemService.cs:line 145 at Gealan.Application.Web.Pages.ContentItemFacade.GetContentItems(PageInfo pageInfo) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Application\Gealan.Application.Web\Pages\ContentItemFacade.cs:line 51 at Gealan.WebCore.Controllers.ContentPageController.Detail() in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Controllers\ContentPageController.cs:line 140 at lambda_method1647(Closure , Object ) at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Logged|12_1(ControllerActionInvoker invoker) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync() --- End of stack trace from previous location --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync() --- End of stack trace from previous location --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker) at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Gealan.WebCore.Infrastructure.PreferredCultureMiddleware.InvokeAsync(HttpContext context) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Infrastructure\PreferredCultureMiddleware.cs:line 59 at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Gealan.WebCore.Infrastructure.CustomPageRedirectMiddleware.InvokeAsync(HttpContext context) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Infrastructure\CustomPageRedirectMiddleware.cs:line 60 at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Kentico.Content.Web.Mvc.ContentOutputMiddleware.InvokeAsync(HttpContext context) at Kentico.Web.Mvc.KenticoRequestLocalizationMiddleware.InvokeAsync(HttpContext context) at Kentico.Content.Web.Mvc.PageRedirectionContextMiddleware.InvokeAsync(HttpContext context) at Kentico.Web.Mvc.KenticoRequestEventsMiddleware.InvokeAsync(HttpContext context) at Gealan.WebCore.Infrastructure.AntiXssMiddleware.Invoke(HttpContext context) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Infrastructure\AntiXssMiddleware.cs:line 55 at NetEscapades.AspNetCore.SecurityHeaders.SecurityHeadersMiddleware.Invoke(HttpContext context) in C:\projects\netescapades-aspnetcore-securityheaders\src\NetEscapades.AspNetCore.SecurityHeaders\SecurityHeadersMiddleware.cs:line 69 at Gealan.WebCore.Startup.<>c.<b__13_4>d.MoveNext() in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Startup.cs:line 290 --- End of stack trace from previous location --- at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at React.AspNet.BabelFileMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context) at Gealan.WebCore.Infrastructure.DefaultRedirectMiddleware.InvokeAsync(HttpContext context) in D:\agents\Actum-Kentico-agent02\_work\1100\s\src\backend\Presentation\Gealan.WebCore\Infrastructure\DefaultRedirectMiddleware.cs:line 74 at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) HEADERS ======= Accept: */* Host: www.gealan.de Max-Forwards: 10 Referer: https://www.gealan.de/fr/au-cour-de-vos-fenetres/architectes/produits-pour-architectes User-Agent: claudebot X-ARR-LOG-ID: 1213ec16-7a06-48ba-abef-0a9be70050b2 CLIENT-IP: 3.93.59.171:56486 DISGUISED-HOST: www.gealan.de X-SITE-DEPLOYMENT-ID: geaKen13prodmvc WAS-DEFAULT-HOSTNAME: geaken13prodmvc.azurewebsites.net X-Forwarded-Proto: https X-AppService-Proto: https X-ARR-SSL: 2048|256|CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US|CN=gealan.de X-Forwarded-TlsVersion: 1.3 X-Forwarded-For: 3.93.59.171:56486 X-Original-URL: /fr/au-cour-de-vos-fenetres/architectes/produits-pour-architectes/ X-WAWS-Unencoded-URL: /fr/au-cour-de-vos-fenetres/architectes/produits-pour-architectes/