.-.-.-.-.-

<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
defined('BASEPATH') or exit('No direct script access allowed');

class Maintenance extends CI_Controller
{

public function __construct()
    {
        parent::__construct();
        $this->load->database();
        $this->load->helper(['url', 'language', 'timezone_helper']);
        $this->load->library(['Jwt', 'Key']);
        $this->load->model(['address_model', 'category_model', 'product_model', 'brand_model', 'cart_model', 'faq_model', 'blog_model', 'ion_auth_model']);
        $this->load->library(['pagination']);
        $this->data['is_logged_in'] = ($this->ion_auth->logged_in()) ? 1 : 0;
        $this->data['user'] = ($this->ion_auth->logged_in()) ? $this->ion_auth->user()->row() : array();
        $this->data['settings'] = get_settings('system_settings', true);
        $this->data['web_settings'] = get_settings('web_settings', true);
        $this->data['auth_settings'] = get_settings('authentication_settings', true);
        $this->data['web_logo'] = get_settings('web_logo');
        $this->response['csrfName'] = $this->security->get_csrf_token_name();
        $this->response['csrfHash'] = $this->security->get_csrf_hash();
    }

public function index()
    {

$this->data['main_page'] = 'under_maintenance';
        $this->data['title'] = 'Maintenance | ' . $this->data['web_settings']['site_title'];
        $this->data['keywords'] = 'Maintenance, ' . $this->data['web_settings']['meta_keywords'];
        $this->data['description'] = 'Maintenance | ' . $this->data['web_settings']['meta_description'];
        $this->data['web_maintenance_mode'] = $this->data['settings'];
        $settings = $this->data['settings'];

if ((isset($settings['is_web_under_maintenance']) || $settings['is_web_under_maintenance'] == 1)) {
            /* redirect him to the page where he can enter the purchase code */
            $this->load->view('front-end/' . THEME . '/template', $this->data);
        }
    }
}

/home/users/unlimited/www/eshop.codeskitter.site/application/controllers/Maintenance.php