Google Analytics "analytics.js" snippet is not being entered in header

<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-105876252-1', 'auto');
  ga('send', 'pageview');

</script>

This code does not appear for some reason. can you fix this asap.

Hi There,

Thank you for writing in, Are you using Google Analytics Extension? Please follow the documentation.

Be aware that your Google Analytics code will not output if you are a admin logged-in user (to avoid extra hits on Google Analytics). Try to load the page in private/incognito mode of your browser.

Hope this shed some lights,
Cheers!