You are viewing the page from https but the script tag has:
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false&key=AIzaSyCKfoV25JMUcmjEiSA8wgm98ABS4I-1mRQ">/*wagmp*/</script>
Try updating the script src to https:// to match the page.