special-mikhail Kindly check now. The following code to load "back to Top" button was missing in /tpls/blocks/footer.php file around line 25 which has been added now :
<div id="back-to-top" data-spy="affix" data-offset-top="300" class="back-to-top hidden-xs hidden-sm affix-top">
<button class="btn btn-inverse" title="Back to Top"><i class="icon-arrow-up fa fa-angle-double-up"></i></button>
</div>
<script type="text/javascript">
(function($) {
// Back to top
$('#back-to-top').on('click', function(){
$("html, body").animate({scrollTop: 0}, 500);
return false;
});
})(jQuery);
</script>
Kindly ensure to clear your browser cache if changes dont reflect