modification authentification.tpl quelles lignes supprimer ?

[bugg]

bonsoir,
j'ai suivi avec grand intérêt le forum modifier authentification.tpl pour groupe clent mais j'ai dûme planter quelque part, car lorsque je termine l'incription, la page authentification.php reste blanche
merci d'avance code origine =[/b[color=pink]]

$customer->active = 1;
if (!$customer->add())
$errors[] = Tools::displayError('an error occurred while creating your account');
else
{
$address->id_customer = intval($customer->id);
if (!$address->add())
$errors[] = Tools::displayError('an error occurred while creating your address');
else
{
if (!Mail::Send(intval($cookie->id_lang), 'account', 'Welcome!',
array('{firstname}' => $customer->firstname, '{lastname}' => $customer->lastname, '{email}' => $customer->email, '{passwd}' => Tools::getValue('passwd')), $customer->email, $customer->firstname.' '.$customer->lastname))
$errors[] = Tools::displayError('cannot send email');
$smarty->assign('confirmation', 1);
$cookie->id_customer = intval($customer->id);
$cookie->customer_lastname = $customer->lastname;
$cookie->customer_firstname = $customer->firstname;
$cookie->passwd = $customer->passwd;
$cookie->logged = 1;
$cookie->email = $customer->email;
Module::hookExec('createAccount', array(
'_POST' => $_POST,
'newCustomer' => $customer
));
if ($back)
Tools::redirect($back);
}code modifié :
$customer->active = 1;
if (!$customer->add(true,true,Tools::getValue('id_group',1)))
$errors[] = Tools::displayError('an error occurred while creating your account');
else
{
$address->id_customer = intval($customer->id);[/color]