LinqToTwitter状态更新有时才有效

我正在尝试使用LinqToTwitter发送tweet。我的问题是，它几乎从来都不起作用。我已经让它在30次中运行了3次，通常这是我尝试调试的时候。我认为这可能与时间和身份验证有关，但我不知道怎么做。代码运行时没有错误，但不会生成tweet。

public static async Task SendTweetAsync(string text)
    {
        // Get the authorization credentials
        var auth = GetCredentials();
        // Create the twitter context
        var ctx = new TwitterContext(auth);
        try
        {
            Status responseTweet = await ctx.TweetAsync(text);
        }
        catch (Exception e) {
            throw e;
        }
    }
    private static AspNetAuthorizer GetCredentials()
    {
        return new AspNetAuthorizer
        {
            CredentialStore = new InMemoryCredentialStore()
            {
                ConsumerSecret = "##########",
                ConsumerKey = "##########",
                OAuthToken = "##########",
                OAuthTokenSecret = "##########",
                UserID = ##########
            }
        };
    }

private static SingleUserAuthorizer GetCredentials()
{
    return new SingleUserAuthorizer
    {
        CredentialStore = new InMemoryCredentialStore()
        {
            ConsumerSecret = "##########",
            ConsumerKey = "##########",
            OAuthToken = "##########",
            OAuthTokenSecret = "##########",
            UserID = ##########
        }
    };
}

var auth = GetCredentials();
await auth.AuthorizeAsync();