Question about the ads code

Hello,

I’m using these Google AdSense codes:

for the header:

<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- Securerr Header 728x90 -->
<ins class="adsbygoogle"
style="display:inline-block;width:728px;height:90px"
data-ad-client="ca-pub-1013647795269076"
data-ad-slot="7562654941"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>

for the sidebar:

<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- Securerr Sidebar 300x250 -->
<ins class="adsbygoogle"
style="display:inline-block;width:300px;height:250px"
data-ad-client="ca-pub-1013647795269076"
data-ad-slot="9039388142"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>

Is it okay? Cause I pasted them now on the site and there’s nothing showing. Can you help me?

Thanks.