Hello,
in your index.php we found some script which breaks responsive menu
if(typeof jQuery == 'function'

{
jQuery(function () {
jQuery('a:not([href*="' + document.domain + '"])'

.click(function () {
trackOutboundLink(this, 'Outbound Links', jQuery(this).attr('href'

); return false;
});
});
}
remove it
Thanks,
OrdaSoft team