CodeIgniter 3 Unable to extand library on live server : I extends CI_pagination in MY_pagination library. its working fine offline in wamp. But i dont know why it is not working online on live server.

MY_pagination.php

        <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
        
        class MY_pagination extends CI_pagination {
            protected $CI;
        
            public function __construct() {
                parent::__construct();
                    // reference to the CodeIgniter super object
                $this->CI =& get_instance();
        		
        	 }
        
        	
        	
             public function table_pagination($page_url, $total_rows, $per_page)
            {
                
                $config = array(
                    'base_url' => $page_url,
                    'total_rows' => $total_rows,
                    'per_page' => $per_page,
                    'use_page_numbers' => TRUE,
                    'num_links' => 2,
                    
                    'next_link' => 'Next',
                    'prev_link' => 'Previous',
                    'reuse_query_string' => true,
                    'first_link' => false,
                    'last_link' => false,
                    
                    'full_tag_open' => '<ul class="pagination">',
                    'full_tag_close' => '</ul>',
                    'next_tag_open' => '<li class="paginate_button next" id="example1_next">',
                    'next_tag_close' => '</li>',
                    'prev_tag_open' => '<li class="paginate_button previous" id="example1_previous">',
                    'prev_tag_close' => '</li>',
                    'cur_tag_open' => '<li class="paginate_button active"><a>',
                    'cur_tag_close' => '</a></li>',
                    'num_tag_open' => '<li class="paginate_button">',
                    'num_tag_close' => '</li>'
                );
                
                $this->CI->pagination->initialize($config);
                return $this->CI->pagination->create_links();
                
                
            }
            
         public function home_pagination($page_url, $total_rows, $per_page)
            {
                
                $config = array(
        		     'prefix' => 'page/',
                    'base_url' => $page_url,
                    'total_rows' => $total_rows,
                    'per_page' => $per_page,
                    'use_page_numbers' => TRUE,
                    'num_links' => 2,
                    
                    'next_link' => '<img src="'.base_url('assets/images/arrow-next-small.png').'" alt=""/>',
                    'prev_link' => '<img src="'.base_url('assets/images/arrow-pre-small.png').'" alt=""/>',
                    'reuse_query_string' => true,
                    'first_link' => false,
                    'last_link' => false,
                    
                    'full_tag_open' => '<div class="pagination">',
                    'full_tag_close' => '</div>',
                    'next_tag_open' => '',
                    'next_tag_close' => '',
                    'prev_tag_open' => '',
                    'prev_tag_close' => '',
                    'cur_tag_open' => '<a href="#" class="active">',
                    'cur_tag_close' => '</a>',
                    'num_tag_open' => '',
                    'num_tag_close' => ''
                );
                
                $this->CI->pagination->initialize($config);
                return $this->CI->pagination->create_links();
                
                
            }
            
        }
    
Home_controller.php
    
    <?php
    class Home_controller extends MY_Controller
    {
        public function __construct()
        {
            parent::__construct();
            $this->load->library('pagination');
            $this->load->helper('date');
            $this->load->helper('main');
            $this->load->helper('cookie');
            $this->load->helper('template_helper');
            $this->load->helper('db_helper');
            $remember_me = get_cookie('user_remember');
            _session_login($remember_me);
            $this->load->library('session');
            
            // _valid_session_login_check();
            //  $this->load->model('admin_models/sliders/slider_model');
            
        }
        
        public function index()
        {
            $controller_base_url = base_url("/front_controllers/home/home_controller/index");
            $controller_re_url   = base_url("/index");
            $uri_values          = $this->uri->uri_to_assoc(2);
            $search_string       = "";
            if (isset($uri_values['search'])) {
                $search_string = $uri_values['search'];
            }
            
            $page_num = 1;
            if (isset($uri_values['page'])) {
                $page_num = $uri_values['page'];
            }
            
            $page_url = $controller_re_url;
            if ($search_string !== "") {
                $page_url = $page_url . "/search/" . $search_string;
            }
            
            if (!isset($uri_values['search'])) {
                $search_string = $this->input->get('search');
            }
            
            $per_page = 12;
            if ($search_string == "") {
                $post_list  = _get_post_list($per_page, $page_num);
                $total_rows = _post_rows_count("active", "");
            } else {
                $post_list  = _post_search($search_string, $per_page, $page_num);
                $total_rows = _home_search_rows_count($search_string);
            }
            
            $active_post_pagination = $this->pagination->home_pagination($page_url, $total_rows, $per_page);
            $cat_list               = _get_term_list_post_count('category', 0, 1);
            $tag_list               = _get_term_list_post_count('tag', 10, 1);
            
            // print_r($post_list);
            
            $urls       = array(
                'controller_base_url' => $controller_base_url,
                'controller_re_url' => $controller_re_url
            );
            $this->data = array(
                'urls' => $urls,
                'post_list' => $post_list,
                'widget_cat_list' => $cat_list,
                'widget_tag_list' => $tag_list,
                'active_post_pagination' => $active_post_pagination
            );
            $this->meta = 'layout/front_layout/normal_meta';
            $this->head = 'layout/front_layout/home/home_view_head_section';
            $this->body = 'layout/front_layout/home/home_view_content_section';
            $this->layout();
        }
    }
    
    ?>

Error 

    Fatal error: Call to undefined method CI_Pagination::home_pagination() in /home/lovebatth39/public_html/application/controllers/front_controllers/home/Home_controller.php on line 55

I dont know why its not working online.Mainly i am trying to extend pagination library. 
I already checked Naming system like capital "MY_"

$config['subclass_prefix'] = 'MY_';

Config file also set to MY_