Facebook Messenger Chat Plugin not showing 'Guest' mode on my webflow website. I have put the code in my webflow website but no result is shown.
I have a problem on webflow where I want to integrate Facebook Chat messenger plugin. The problem is that the Plugin is not showing 'Guest' mode as It should be. I have checked the setup and enabled the guest mode but I have no luck on this.

You can see in the image above. It only shows 'Login' but no 'Guest' mode. I am not able to figure out the problem. If someone has the solution, please let me know.
Code:
<!-- Messenger Chat Plugin Code -->
<div id="fb-root"></div>
<!-- Your Chat Plugin code -->
<div id="fb-customer-chat" class="fb-customerchat">
</div>
<script>
var chatbox = document.getElementById('fb-customer-chat');
chatbox.setAttribute("page_id", "250164938373160");
chatbox.setAttribute("attribution", "biz_inbox");
</script>
<!-- Your SDK code -->
<script>
window.fbAsyncInit = function() {
FB.init({
xfbml : true,
version : 'v19.0'
});
};
(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>
I also encountered the same problem, I tried many different ways but all failed. I tried accessing some websites that use chat plugins and as a result they also encountered problems. Ultimately I think this error is due to facebook's api server.