Cant display user-image in AdminLTE header

Good day, im new in codeigniter but im enjoying it with integretion of Admin LTE. So far so smooth when I started making a system but lately i've got some problems with ta header of the AdminLTE theme. The use profile image won't display but in dashboard it will display ... can anyone enlighten me on this, am i missing something?
this is my code:

PHP Code:

      <!-- Sidebar user panel -->
      <div class="user-panel">
        <div class="pull-left image">
        <?php 
          if(isset($staff)){
              $userid = $this->session->userdata('userid');
                foreach ($staff as $stff):
                  if ($stff['id'] == $userid){ ?>
                    <img src="<?php echo base_url();?>uploads/profile-pic/<?php echo $stff['pic'];?>" class="img-circle" alt="User Image">
                <?php  }
                endforeach;
            }
        ?> 
        </div>
        <div class="pull-left info">
          <p>Staff Account</p> 
          <a href="#"><i class="fa fa-circle text-success"></i> Online</a>
        </div>
      </div> 


 
this code will work on dashboard page but not in header page.
thanks in advance..