2026-09-20T08:28:10.598674619Z [Jellyfin] [10:28:10] [ERR] [90] Jellyfin.Api.Middleware.ExceptionMiddleware: Error processing request. URL POST /Users/AuthenticateByName.
2026-09-20T08:28:10.598833483Z [Jellyfin] System.ArgumentNullException: Value cannot be null. (Parameter 'request.App')
2026-09-20T08:28:10.598845805Z [Jellyfin] at System.ArgumentNullException.Throw(String paramName)
2026-09-20T08:28:10.598852563Z [Jellyfin] at System.ArgumentNullException.ThrowIfNull(Object argument, String paramName)
2026-09-20T08:28:10.598858876Z [Jellyfin] at System.ArgumentException.ThrowNullOrEmptyException(String argument, String paramName)
2026-09-20T08:28:10.598865079Z [Jellyfin] at System.ArgumentException.ThrowIfNullOrEmpty(String argument, String paramName)
2026-09-20T08:28:10.598871246Z [Jellyfin] at Emby.Server.Implementations.Session.SessionManager.AuthenticateNewSessionInternal(AuthenticationRequest request, Boolean enforcePassword)
2026-09-20T08:28:10.598877702Z [Jellyfin] at Jellyfin.Api.Controllers.UserController.AuthenticateUserByName(AuthenticateUserByName request)
2026-09-20T08:28:10.598883809Z [Jellyfin] at lambda_method9171(Closure, Object)
2026-09-20T08:28:10.598889630Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.AwaitableObjectResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
2026-09-20T08:28:10.598897236Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
2026-09-20T08:28:10.598903716Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
2026-09-20T08:28:10.598910151Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
2026-09-20T08:28:10.598916856Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
2026-09-20T08:28:10.598922997Z [Jellyfin] --- End of stack trace from previous location ---
2026-09-20T08:28:10.598929067Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
2026-09-20T08:28:10.598935701Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
2026-09-20T08:28:10.598943196Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
2026-09-20T08:28:10.598949756Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
2026-09-20T08:28:10.598955808Z [Jellyfin] --- End of stack trace from previous location ---
2026-09-20T08:28:10.598961636Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
2026-09-20T08:28:10.598968535Z [Jellyfin] at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
2026-09-20T08:28:10.598974845Z [Jellyfin] at Jellyfin.Api.Middleware.ServerStartupMessageMiddleware.Invoke(HttpContext httpContext, IServerApplicationHost serverApplicationHost, ILocalizationManager localizationManager)
2026-09-20T08:28:10.598981491Z [Jellyfin] at Jellyfin.Api.Middleware.WebSocketHandlerMiddleware.Invoke(HttpContext httpContext, IWebSocketManager webSocketManager)
2026-09-20T08:28:10.598987639Z [Jellyfin] at Jellyfin.Api.Middleware.IPBasedAccessValidationMiddleware.Invoke(HttpContext httpContext, INetworkManager networkManager)
2026-09-20T08:28:10.598993738Z [Jellyfin] at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
2026-09-20T08:28:10.598999762Z [Jellyfin] at Jellyfin.Api.Middleware.QueryStringDecodingMiddleware.Invoke(HttpContext httpContext)
2026-09-20T08:28:10.599005679Z [Jellyfin] at Swashbuckle.AspNetCore.ReDoc.ReDocMiddleware.Invoke(HttpContext httpContext)
2026-09-20T08:28:10.599013150Z [Jellyfin] at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
2026-09-20T08:28:10.599019611Z [Jellyfin] at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
2026-09-20T08:28:10.599025736Z [Jellyfin] at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
2026-09-20T08:28:10.599032299Z [Jellyfin] at Jellyfin.Api.Middleware.RobotsRedirectionMiddleware.Invoke(HttpContext httpContext)
2026-09-20T08:28:10.599038414Z [Jellyfin] at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
2026-09-20T08:28:10.599044648Z [Jellyfin] at Microsoft.AspNetCore.ResponseCompression.ResponseCompressionMiddleware.InvokeCore(HttpContext context)
2026-09-20T08:28:10.599050815Z [Jellyfin] at Jellyfin.Api.Middleware.ResponseTimeMiddleware.Invoke(HttpContext context, IServerConfigurationManager serverConfigurationManager)
2026-09-20T08:28:10.599057690Z [Jellyfin] at Jellyfin.Api.Middleware.ExceptionMiddleware.Invoke(HttpContext context)