Can not show up Pop up form

When I paste following code to footer.php, the whole site looks weird.

<script type="text/javascript" src="//s3.amazonaws.com/downloads.mailchimp.com/js/signup-forms/popup/embed.js" data-dojo-config="usePlainJson: true, isDebug: false"></script><script type="text/javascript">require(["mojo/signup-forms/Loader"], function(L) { L.start({"baseUrl":"mc.us9.list-manage.com","uuid":"21d02b6c3f4e94b3ee7da4d0c","lid":"8b45ecba31"}) })</script>

Do you know how to resolved this problem?

Best Regards,

Zhe Yan