Jet Pack

Hi! I am getting this error message trying to install the Jet Pack

<!– ngg_resource_manager_marker –>

<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’,’//www.google-analytics.com/analytics.js’,’ga’);

ga(‘create’, ‘UA-39554111-1’, ‘resesidan.se’);
ga(‘send’, ‘pageview’);

</script>
<!–[if lt IE 9]>
<script src=”https://resesidan.se/wp/wp-content/themes/hueman/js/ie/respond.js”></script&gt;
<![endif]–>
XML-RPC server accepts POST requests only.

Any ideas what I need to do?