Facebook chat plugin not loaded give me error in console

See I copy the code from facebook and paste in my HTML page

<div id="fb-root"></div>
<!-- Load Facebook SDK for JavaScript -->
<script>
  (function(d, s, id) {
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) return;
    js = d.createElement(s); js.id = id;
    js.src = 'https://connect.facebook.net/en_US/sdk/xfbml.customerchat.js';
    fjs.parentNode.insertBefore(js, fjs);
  }(document, 'script', 'facebook-jssdk'));

</script>
<div class="fb-customerchat"
 page_id="My-page-id">
</div>

And i get error in my console is:

The CustomerChat plugin is no longer part of the main Facebook SDK. To continue using it please use the correct SDK URL, meaning replace sdk.js with sdk/xfbml.customerchat.js. For more details see: https://developers.facebook.com/docs/messenger-platform/discovery/customer-chat-plugin/sdk

I am tried to replace with sdk.js but it's not working. Please help me out here.