Error Call to a member function seo() on nul

i have one problem 
i am upgrade CI3 x CI4 and receive one error:

PHP Code:

[color=#ffffff][size=xx-large]Error[/size][/color]

[color=#ffffff][size=medium]Call to a member function seo() on null[/size][/color] 


 
My function in Menus.php 

Code:

  public function seo($tag){
    $uri = current_url(true);
    $uri = ((string)$uri == '')? '/' : (string)$uri;
    return $this->listSeo[$uri][$tag];
   
  }

My Controller and My base Controller.

PHP Code:

<?php
namespace App\Controllers;

/**
 * Class BaseController
 *
 * BaseController provides a convenient place for loading components
 * and performing functions that are needed by all your controllers.
 * Extend this class in any new controllers:
 *     class Home extends BaseController
 *
 * For security be sure to declare any new methods as protected or private.
 *
 * @package CodeIgniter
 */

use CodeIgniter\Controller;
use App\Libraries\My_parser;
use App\Libraries\Preferencia;
use App\Models\index_model;
use App\Libraries\Traducao;
use App\Libraries\Menus;

class BaseController extends Controller
{
    protected $helpers = [];
    public function initController(\CodeIgniter\HTTP\RequestInterface $request, \CodeIgniter\HTTP\ResponseInterface $response, \Psr\Log\LoggerInterface $logger)
    {
        // Do Not Edit This Line
        parent::initController($request, $response, $logger);
        $this->_db = \Config\Database::connect();
        $this->My_parser = new My_Parser();
        $this->preferencia = new Preferencia();
        $this->_model = new \App\Models\index_model();
        $this->traducao = new Traducao();
        $this->menus = new \App\Libraries\Menus($this->_db, $request);
    }

    
      public function output($data, $status){
        $this->output
        ->set_status_header(200)
        ->set_content_type('application/json', 'utf-8')
        ->set_output(
          json_encode(
            array(
              'status'=> $status,
              'response'=> $data    
            ), 
            JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES
          )
        )->_display();
        exit;
      }
    } 


PHP Code:

<?php namespace App\Controllers;

use App\Libraries\my_parser;
use CodeIgniter\Controller;
use App\Libraries\Preferencia;
use App\Libraries\Menus;

class Home extends BaseController
{

    public function index()
    {
        $my_parser = new My_parser;
        $Preferencia = new Preferencia();
        $data = array();
        $data['title']       = "Index" ;
        $data['css']         = $this->My_parser->css(array());
        $data['metatags']    = $this->My_parser->metatags(array());
        $data['js']          = $this->My_parser->js(array());

        $data['empresas_parceiras'] = $this->_model->logosEmpresasParceiras();
        //$this->load->view("index", $data);

                //echo view('template/head', $data);
                //echo view('menu');
             //   echo view('content', $data);
                //echo view('footer');
        return view('index', $data);
    }

    public function idioma(){

        $idioma_nome = $this->input->get('lang');
        $idioma_id   = $this->input->get('id');
        $redirect    = $this->input->get('uri');

        $this->session->set_userdata('idioma', $idioma_id);

        redirect($redirect);
    }
    //--------------------------------------------------------------------

}