@arun
In file:
oc-content/themes/veronika/header.php

Find line:
<div class="notification">
After this line place:
          <?php if(function_exists('osp_install')) { ?>
            <?php
              $cart_count = 0;
              if(osc_is_web_user_logged_in()) {
                $cart = ModelOSP::newInstance()->getCart(osc_logged_user_id());
                $cart_count = count(array_filter(explode('|', $cart)));
              }
            ?>

            <a class="cart tr1" title="<?php _e('Cart', 'veronika'); ?>" href="<?php echo osc_route_url('osp-cart'); ?>"><i class="fa fa-shopping-basket"></i> <span class="counter"><?php echo $cart_count; ?></span></a>
          <?php } ?>


To theme style.css add line:
#header-bar .notification > a.cart span.counter { background: #02C39A; }

solved thank you 

Hello, you could also help me that I can not insert it

go to your theme folder, and find  header.php (theme veronika)

find <div class="notification"> around line 114, below <div class="notification">  copy and paste this chunk of code     <?php if(function_exists('osp_install')) { ?>
            <?php
              $cart_count = 0;
              if(osc_is_web_user_logged_in()) {
                $cart = ModelOSP::newInstance()->getCart(osc_logged_user_id());
                $cart_count = count(array_filter(explode('|', $cart)));
              }
            ?>

            <a class="cart tr1" title="<?php _e('Cart', 'veronika'); ?>" href="<?php echo osc_route_url('osp-cart'); ?>"><i class="fa fa-shopping-basket"></i> <span class="counter"><?php echo $cart_count; ?></span></a>
          <?php } ?
its done,

best of luck.

you can send me complete header.php because I can not insert the cart at the top like a photo

@fabio

Hope yours  issue were sort out, just replace those file
 

It ok

Tanks