System.ArgumentNullException: Value cannot be null. (Parameter 'markdown') at Markdig.Markdown.ToHtml(String markdown, MarkdownPipeline pipeline) at ContentRazorHelperExtensions.MarkdownToHtmlAsync(IOrchardHelper orchardHelper, String markdown) in C:\projects\orchardcore\src\OrchardCore.Modules\OrchardCore.Markdown\Razor\MarkdownHelperExtensions.cs:line 22 at AspNetCore.Pages_TinTuc_Detail.ExecuteAsync() in /var/www/Website-Duoc-Mua/DuocMuaWebsite/Pages/TinTuc_Detail.cshtml:line 84 at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context) at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts) at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context) at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode) at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|29_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_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 where exception was thrown --- 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.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context) at OrchardCore.Apis.GraphQL.GraphQLMiddleware.Invoke(HttpContext context, IAuthorizationService authorizationService, IAuthenticationService authenticationService, ISchemaFactory schemaService) in C:\projects\orchardcore\src\OrchardCore.Modules\OrchardCore.Apis.GraphQL\GraphQLMiddleware.cs:line 70 at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at OrchardCore.Diagnostics.DiagnosticsStartupFilter.<>c__DisplayClass3_0.<b__1>d.MoveNext() in C:\projects\orchardcore\src\OrchardCore.Modules\OrchardCore.Diagnostics\DiagnosticsStartupFilter.cs:line 47 --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context) at OrchardCore.Modules.ModularTenantRouterMiddleware.Invoke(HttpContext httpContext) in C:\projects\orchardcore\src\OrchardCore\OrchardCore\Modules\ModularTenantRouterMiddleware.cs:line 83 at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute) in C:\projects\orchardcore\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 103 at OrchardCore.Modules.ModularTenantContainerMiddleware.Invoke(HttpContext httpContext) in C:\projects\orchardcore\src\OrchardCore\OrchardCore\Modules\ModularTenantContainerMiddleware.cs:line 61 at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) HEADERS ======= Connection: keep-alive Accept: */* Host: duocmua.vn User-Agent: claudebot X-Forwarded-For: 44.220.59.236 X-Forwarded-Proto: https