The plugin doesn’t work, did I enter the wrong code?

The plugin doesn’t work, this is my script code, is something wrong?

<div class="aicp">
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- Ads 1 -->
<ins class="adsbygoogle"
     style="display:inline-block;width:728px;height:90px"
     data-ad-client="ca-pub-892461340*******"
     data-ad-slot="3638911711"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div>