Probleme envois de courriel via php

Je suis en confection de site et pour sauver un peu de temps j'ai acheter un script php pour le transfert de courriel via mon site web .

Lors de l'envois il me donne le code d'erreur suivant :

<?php
//www.resellscripts.info
error_reporting(E_ALL);
if(getenv('REQUEST_METHOD') != 'POST')
exit('Opss! Only POST requests are accepted');

include_once 'email.class.php';
include_once 'config.class.php';
include_once 'protector.class.php';

define('DS' , DIRECTORY_SEPARATOR);

$email = new Email($_POST);
$email->init();

?>

Le email.class.php :
<?php
//www.resellscripts.info
define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
class Email extends Protector {

public function init(){

if($this->finish()){
$mail = $this->phpmailer();
$mail = new PHPMailer(true);
$mail->IsHTML(true);

try{
$mail->Body = $this->body();
$mail->Subject = $this->subject();
$mail->From = $this->from('email');
$mail->FromName = $this->from('name');
$mail->AddReplyTo($this->from('email'));

/** SMTP OPTIONS **/

if($this->Config->smtp['use'] != 'no'){
$mail->IsSMTP();
$mail->Host = $this->Config->smtp['host'];
$mail->Port = $this->Config->smtp['port'];
$mail->SMTPSecure = $this->Config->smtp['secure'];
if($this->Config->smtp['auth'] != 'no'){
$mail->SMTPAuth = true;
$mail->Username = $this->Config->smtp['username'];
$mail->Password = $this->Config->smtp['password'];
}
}
// Adds Addresses

foreach($this->Config->Address as $Address){
if(!empty($Address))
$mail->AddAddress($Address);
}

// Adds cc
foreach($this->Config->Cc as $Address){
if(!empty($Address))
$mail->AddCC($Address);
}

$mail->CharSet = $this->Config->charset;
$email = $mail->Send();
if($email){
if(IS_AJAX)
echo json_encode(true);
else
echo $this->msg['success'];
}
}catch(Exception $e){
if(IS_AJAX)
echo json_encode(false);
else
echo $this->msg['error'];
}

}

}
public function __constructor($post){
parent::__construct($post);
}
private function phpmailer(){
include_once 'phpmailer' . DS . 'class.phpmailer.php';
return new PHPMailer();
}

public function body(){
$body = "<h3 style=\"color:#0066CC;border-bottom:1px solid #0066CC;\">Details</h3>\n";
foreach($this->data as $key => $val){
if($this->fields[$key]['func'] != 'sec1'){
if($this->fields[$key]['func'] != 'sec2'){
$field = $this->fields[$key]['name'];
$body .= " <strong>{$field}: </strong>{$val}<br />";
}
}
}
return $body;

}

public function subject(){
foreach($this->fields as $key => $val){
if(isset($this->fields[$key]['is']) && $this->fields[$key]['is'] == 'subject')
return $this->data[$key];
}
}

public function from($a){
foreach($this->fields as $key => $val){
if($a == 'email'){
if(isset($this->fields[$key]['is']) && $this->fields[$key]['is'] == 'email')
return $this->data[$key];
}else{
if(isset($this->fields[$key]['is']) && $this->fields[$key]['is'] == 'name')
return $this->data[$key];
}
}
}

}
?>

Merci de votre aide