Erro no cadastro de email

De repente, o sistema de newsletter começou a dar esse erro qdo cadastro emails..

Server object error 'ASP 0177 : 800401f3' Server.CreateObject Failed /newsletter1/mailing_list/functions/functions_send_mail.asp, line 157 Invalid ProgID. For additional information specific to this message please visit the Microsoft Online Support site located at: http://www.microsoft.com/contentredirect.asp.

Alguém pode me ajudar? Sei mto poko de ASP...