Appharbor Background worker Issue - Error : "Terminated with exitcode -2147467259" - backgroundworker

Question

I have hosted 1 background worker on app-harbor for sending email. From last 3 to 4 days it is not working, I am getting error “Terminated with exitcode -2147467259”.
Below is script using in background worker:
static void Main(string[] args)
{
while (true)
{
//Worker_Process_For Send Email
EmailCls.SendEmail_ByMailGun("a#b.com", "a#b.com", "Testing Shailesh-live", "body-live");
}
}
public static IRestResponse SendEmail_MailGun(string from ,string to ,string subject,string body)
{
RestClient client = new RestClient();
client.BaseUrl = ConfigurationManager.AppSettings["mailgun_baseurl"].ToString();// "https//api.mailgun.net/v2";
client.Authenticator = new HttpBasicAuthenticator("api", ConfigurationManager.AppSettings["mailgun_key"].ToString());
var mailgun_domain = ConfigurationManager.AppSettings["mailgun_domain"].ToString();
RestRequest request = new RestRequest();
request.AddParameter(mailgun_domain,mailgun_domain, ParameterType.UrlSegment);
request.Resource = "{" + mailgun_domain + "}/messages";
request.AddParameter("from", from);
request.AddParameter("to", to);
request.AddParameter("subject", subject);
request.AddParameter("html", body);
request.Method = Method.POST;
return client.Execute(request);
}
The given script working fine in local machine but not from appharbor .

Answer 1

We recently added a new logging module which gives you real-time access to your background worker's STDOUT and STDERR.
You can start a log session by clicking the "Logging" link in the application's nav bar. That should give you more output to help identify and resolve this issue.

Answer 2

I just Changed application Start Object[ which was not set in past ]in Application property window and rebuild and hosted it on app-harbor and my application started working f9.