System.NullReferenceException: Object reference not set to an instance of an object. at navitiWebCore.Plugins.Shop.Pages.Web.ShopModel.OnGetAsync(Nullable`1 categoryId) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.ExecutorFactory.NonGenericTaskHandlerMethod.Execute(Object receiver, Object[] arguments) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeHandlerMethodAsync() at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeNextPageFilterAsync() at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Rethrow(PageHandlerExecutedContext context) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeInnerFilterAsync() 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__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at navitiWebCore.Application.Middleware.CMS.CMSPageMiddleware.Invoke(HttpContext context) in C:\Dev_Code\navitiWebCore\Code\navitiWebCore\3 Core\navitiWebCore.Application\Middleware\CMS\CMSPageMiddleware.cs:line 48 at navitiWebCore.Application.Middleware.Web.PageMiddleware.Invoke(HttpContext context, IWebWebpageData webpageData, IWebAccountData webAccountData) in C:\Dev_Code\navitiWebCore\Code\navitiWebCore\3 Core\navitiWebCore.Application\Middleware\Web\PageMiddleware.cs:line 280 at navitiWebCore.Application.Middleware.Web.ResourceMiddleware.Invoke(HttpContext context, IWebWebpageData navigationData, AppSettings appSettings) in C:\Dev_Code\navitiWebCore\Code\navitiWebCore\3 Core\navitiWebCore.Application\Middleware\Web\ResourceMiddleware.cs:line 99 at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) HEADERS ======= Accept: */* Connection: close Host: www.borner-pflanzen.ch User-Agent: claudebot