when i run this code to login

Redemption.RDOSession Session = new RDOSession();
try
{
",
"intern.domain.com");
}
catch (Exception)
{
}
Debug.WriteLine(Session.LoggedOn);

i get this error from the Exception
"Catastrophic failure"
do any of you have an idea why it won't logon ?

Greetins Entvex