The remote server returned an error: (400) Invalid Microsoft.AspNet.Membership.OpenAuth request

I use Microsoft.AspNet.Membership.OpenAuth when I create a new asp.net.net 4.0 web form and I am config. AuthConfig.cs:

OpenAuth.AuthenticationClients.AddFacebook(
                appId: "my appId",
                appSecret: "my appSecret");

In the application for Facebook applications: Website with Facebook Login: http://www.tindep.com

But when I log in with facebook, this is an error:

Server Error in '/' Application.
The remote server returned an error: (400) Bad Request.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.WebException: The remote server returned an error: (400) Bad Request.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[WebException: The remote server returned an error: (400) Bad Request.]
   System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) +283
   System.Net.WebClient.DownloadString(Uri address) +100
   DotNetOpenAuth.AspNet.Clients.FacebookClient.QueryAccessToken(Uri returnUrl, String authorizationCode) +235
   DotNetOpenAuth.AspNet.Clients.OAuth2Client.VerifyAuthentication(HttpContextBase context, Uri returnPageUrl) +142
   DotNetOpenAuth.AspNet.OpenAuthSecurityManager.VerifyAuthentication(String returnUrl) +239
   Microsoft.AspNet.Membership.OpenAuth.OpenAuthManager.VerifyAuthentication(HttpContextBase context, String returnUrl) +116
   Microsoft.AspNet.Membership.OpenAuth.OpenAuth.VerifyAuthentication(String returnUrl) +82
   EVNSoft.Website.Account.RegisterExternalLogin.ProcessProviderResult() +205
   EVNSoft.Website.Account.RegisterExternalLogin.Page_Load() +24
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +9808229
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18055 

Despite the fact that Google, Twitter, msdn login is successful (check tindep.com/Account/Login.aspx) This is only a mistake when hosting (tindep.com/Account/Login.aspx). localhost: 57846 / Account / Login.aspx login facebook success.

Please help me find the reason.

Thank you so much!