Cant install google remarketing code

[pattyo1]

Hello there, im trying to install my google remarketing code but im allways getting errors like in the attached picture. I just put the code in footer.tpl above     </body> and final code looks like this

 {literal}
    <!-- Kód spoločnosti Google pre remarketingovú značku -->
<!--------------------------------------------------
Remarketingové značky nemôžu byť priradené k informáciám umožňujúcim identifikáciu osôb ani umiestnené na stránkach súvisiacich s citlivými kategóriami. Ďalšie informácie a pokyny k nastaveniu značky nájdete na nasledujúcich stránkach: http://google.com/ads/remarketingsetup
--------------------------------------------------->
<script type="text/javascript">
/* <![CDATA[ */
var google_conversion_id = 979689030;
var google_custom_params = window.google_tag_params;
var google_remarketing_only = true;
/* ]]> */
</script>
<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<div style="display:inline;">
<img height="1" width="1" style="border-style:none;" alt="" src="//googleads.g.doubleclick.net/pagead/viewthroughconversion/979689030/?guid=ON&amp;script=0"/>
</div>
</noscript>
{/literal}

 I will be really grateful for any help. Thank you