Trying to get property of non-object

Hello, I am trying to pass a function through another array, but this indicates the following message

Code:

A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: controllers/Home.php
Line Number: 60
Backtrace:
File: /storage/ssd4/361/2007361/public_html/application/controllers/Home.php
Line: 60
Function: _error_handler
File: /storage/ssd4/361/2007361/public_html/index.php
Line: 315
Function: require_once

But when I do a print_r in the array, I get the values, but I can not get that value.


This is a code:

PHP Code:

public function verifySession()
    {
        $this->load->library('session');

        if (empty($this->session->userdata('number'))){
            $code = 0 ;            
        }else{
            $code = $this->session->userdata ['number'];
        }            
        
        $query = $this->db->query('SELECT * FROM users WHERE code = '.$code.' ');
        $row = $query->row();
        
        $activo = $row->activated;

        $activado = array('verificacion' => $activo );

        return $activado;
        
    } 


PHP Code:

public function index()
    {

        $data['ayb_link'] = $this->link_ayb;
        $data['mantenimiento_link'] = $this->link_mantenimiento;
        $data['recepcion_link'] = $this->link_recepcion;
        $data['title'] = $this->title;   

        print_r($this->verifySession()); 

        print  $this->verifySession()->activado ['verificacion'];


        $this->load->view('head/header');
        $this->load->view('home' , $data);
        $this->load->view('footer/footer');

    }