FBSessionStateClosedLoginFailed every time I try to enter my application

Hi, this returns the status of FBSessionStateClosedLoginFailed each time it starts. I checked my package name, URL setting, etc. And everything is cool. In fact, the book on the face knows that I am authenticated against the application. However, whenever I call openWithCompletion, my session fails!

     [appDelegate.session openWithCompletionHandler:^(FBSession *session,
                                                     FBSessionState status,
                                                     NSError *error) {
        switch (status) {
            case FBSessionStateOpen:
                NSLog (@"Open");
                break;
            case FBSessionStateClosed:
                NSLog (@"Closed");
                break;
            case FBSessionStateClosedLoginFailed:
                NSLog (@"Failed");
                break;
            default:
                break;
        }

        [self updateView];
    }];

I created this in the application’s application, which is also called successfully, but always returns false:

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
    return [FBSession.activeSession handleOpenURL:url];
}