1. This is menu scripts below:
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="bootstrap/jquery.smartmenus.js"></script>
<script type="text/javascript" src="bootstrap/jquery.smartmenus.bootstrap.min.js"></script>
2. This is carousel scripts:
<script src="js/owl.carousel.min.js" type="text/javascript" language="jscript"></script>
<script src="../plugins/jquery.min.js"></script>
Looks like you import 2 different jquery and they conflict. Try to use jQuery.noConflict(); method Here is the api doc