/library/My_Email.php

    
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); 

class MY_Email extends CI_Email{
    function __construct(){
        parent::__construct();
    } 
    
    function subject($subject)
    {
        //Эта функция туту лишняя
        //$subject = $this->_prep_q_encoding($subject);
        //die('111');
        $this->_set_header('Subject', $subject);
    }
}