AspNetCore.Themes_Lepton_Components_Toolbar_LanguageSwitch_Default.ExecuteAsync() error #480

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• ABP Framework version: v3.1
• UI type: Angular
• Tiered (MVC) or Identity Server Seperated (Angular): yes
• Exception message and stack trace: NullReferenceException: Object reference not set to an instance of an object. AspNetCore.Themes_Lepton_Components_Toolbar_LanguageSwitch_Default.ExecuteAsync() Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, bool invokeViewStarts) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context) Microsoft.AspNetCore.Mvc.ViewComponents.ViewViewComponentResult.ExecuteAsync(ViewComponentContext context) Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentInvoker.InvokeAsync(ViewComponentContext context) Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentHelper.InvokeCoreAsync(ViewComponentDescriptor descriptor, object arguments) Volo.Abp.AspNetCore.Mvc.UI.Widgets.AbpViewComponentHelper.InvokeAsync(Type componentType, object arguments) AspNetCore.Themes_Lepton_Layouts_Account_Default+<>c__DisplayClass32_0+<<ExecuteAsync>b__12>d.MoveNext() Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync() AspNetCore.Themes_Lepton_Layouts_Account_Default+<>c__DisplayClass32_0+<<ExecuteAsync>b__8>d.MoveNext() Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync() AspNetCore.Themes_Lepton_Layouts_Account_Default+<>c__DisplayClass32_0+<<ExecuteAsync>b__1>d.MoveNext() Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync() AspNetCore.Themes_Lepton_Layouts_Account_Default.ExecuteAsync() Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, bool invokeViewStarts) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderLayoutAsync(ViewContext context, ViewBufferTextWriter bodyWriter) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context) Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable<int> statusCode) Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable<int> statusCode) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeResultFilters>g__Awaited|27_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker) Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) Volo.Abp.AspNetCore.Auditing.AbpAuditingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) Volo.Abp.AspNetCore.Auditing.AbpAuditingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) Microsoft.AspNetCore.Builder.UseMiddlewareExtensions+<>c__DisplayClass5_1+<<UseMiddlewareInterface>b__1>d.MoveNext() Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) IdentityServer4.Hosting.IdentityServerMiddleware.Invoke(HttpContext context, IEndpointRouter router, IUserSession session, IEventService events) IdentityServer4.Hosting.MutualTlsTokenEndpointMiddleware.Invoke(HttpContext context, IAuthenticationSchemeProvider schemes) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) IdentityServer4.Hosting.BaseUrlMiddleware.Invoke(HttpContext context) Volo.Abp.AspNetCore.MultiTenancy.MultiTenancyMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) Microsoft.AspNetCore.Builder.UseMiddlewareExtensions+<>c__DisplayClass5_1+<<UseMiddlewareInterface>b__1>d.MoveNext() Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Volo.Abp.AspNetCore.Tracing.AbpCorrelationIdMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) Microsoft.AspNetCore.Builder.UseMiddlewareExtensions+<>c__DisplayClass5_1+<<UseMiddlewareInterface>b__1>d.MoveNext() Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.RequestLocalization.AbpRequestLocalizationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next) Microsoft.AspNetCore.Builder.UseMiddlewareExtensions+<>c__DisplayClass5_1+<<UseMiddlewareInterface>b__1>d.MoveNext() Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
• Steps to reproduce the issue: Run the idetntiy server