Codeigniter3 ,Profile picture not displaying using session - codeigniter

Question

Good Day,
image successfully upload in my database and folder, but when I tried to session image not displaying ,I do always fetching and image display but in my session it not displaying I don't know what's wrong thanks for answer.
upload path
enter image description here
view
<a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown">
<img src="<?php echo base_url().'uploads/'.$this->session->userdata('profilepicture')?>" width="150" height="100">
<span class="d-none d-md-inline"><?php echo $this->session->userdata('full_name');?></span>
</a>
login controller and session
my fullname session is displaying but if I try to my profile picture no image display
<?php
class Login extends CI_Controller
{
function __construct(){
parent::__construct();
$this->load->model('Login_model');
}
public function index(){
$this->load->view('login');
}
public function auth(){
$username = $this->input->post('username',TRUE);
$password = md5($this->input->post('password',TRUE));
$validate = $this->Login_model->validate($username,$password);
if($validate->num_rows() > 0){
$data = $validate->row_array();
$name = $data['full_name'];
$user_id = $data['id'];
$username = $data['username'];
$position = $data['position'];
$profilepicture= $data['profilepicture'];
$sesdata = array(
'full_name' => $name,
'user_id' =>$user_id,
'username' => $username,
'position' => $position,
'profilepicture'=> $profilepicture,
'logged_in' => TRUE
);
$this->session->set_userdata($sesdata);
// access login for admin
if($position === '1'|'2'){
redirect('dashboard');
}
// access login for account specialist
elseif($position === '3'){
redirect('dashboard/asdep');
}
// access login for Account (sales/finance/v-tech)
elseif($position === '4'|'5'|'6'){
redirect('dashboard/dept');
}
}
else{
$this->session->set_flashdata("success", "No account found in Database. Please Try Again.");
redirect('login');
}
}
function logout(){
$this->session->sess_destroy();
redirect(base_url("login"));
}
}
modelfor login page
<?php
class Login_model extends CI_Model{
function validate($username,$password){
$this->db->where('username',$username);
$this->db->where('password',$password);
$result = $this->db->get('users',1);
return $result;
}
function active($id){
$this->db->where('id',$id);
$query = $this->db->get('users');
if($query){
return $query->row();
}
}
}
database
CREATE TABLE `users` (
`id` int(11) NOT NULL,
`full_name` varchar(255) NOT NULL,
`username` varchar(255) NOT NULL,
`password` varchar(255) NOT NULL,
`position` int(11) NOT NULL,
`profilepicture` varchar(255) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
my data
INSERT INTO `users` (`id`, `full_name`, `username`, `password`, `position`, `profilepicture`) VALUES
(7, 'Jhon', 'jhon#gmail.com', 'e10adc3949ba59abbe56e057f20f883e', 3, 'profile.png');