PHPmailer error :(

Ik maak al een geruime tijd gebruik van PHPmailer met succes, alleen krijg ik nu ineens deze melding:

Mailer Error: Language string failed to load: from_failed[emailadres].

Ik dacht dat het misschien aan mijn server instellingen lag, maar dit schijnt bij mijn andere host ook zo te zijn. Iemand enig idee, op google is er niets te vinden(qua antwoorden).

code:

<?php

include 'index.htm';

require("phpmailer/class.phpmailer.php");

$mail = new PHPMailer();

$mail->IsSMTP();                                      // set mailer to use SMTP
$mail->Host = "server";  // specify main and backup server
$mail->SMTPAuth = true;     // turn on SMTP authentication
$mail->Username = "***";  // SMTP username
$mail->Password = "****"; // SMTP password

$mail->From = "[email protected]";
$mail->FromName = "Mailer";
$mail->AddAddress("jurgen@****", "Jurgen Meijer");            // name is optional

$mail->WordWrap = 50;                                 // set word wrap to 50 characters
$mail->AddAttachment("/var/tmp/file.tar.gz");         // add attachments
$mail->AddAttachment("/tmp/image.jpg", "new.jpg");    // optional name
$mail->IsHTML(true);                                  // set email format to HTML

$mail->Subject = "Here is the subject";
$mail->Body    = "This is the HTML message body <b>in bold!</b>";
$mail->AltBody = "This is the body in plain text for non-HTML mail clients";

if(!$mail->Send())
{
   echo "Message could not be sent. <p>";
   echo "Mailer Error: " . $mail->ErrorInfo;
   exit;
}

echo "Message has been sent";
?>