Migration von Prestashop - Probleme beim Kundenimport - SQL syntax near '@gmx.de)'

In der Function newsletterSubscribe in CustomerImporter.php muss

$sql = "INSERT INTO s_campaigns_mailaddresses (customer, groupID, email)
    	VALUES (1, {$customer['newslettergroupID']}, {$customer['email']});";

durch

$sql = 'INSERT INTO s_campaigns_mailaddresses (customer, groupID, email)
        VALUES (1, ' . $customer['newslettergroupID'] . ',"' . $customer['email'] . '");';

ersetzt werden!!