You can open catalog\view\theme\shoppica2\template\module\carousel.tpl. Find scroll: <?php echo $scroll; ?>, and add wrap: 'circular', after it.

Regards,
ThemeBurn team

So,
it seems the plugin is broken. I saw there is a temporary solution in one of the comments in the thread you have shared – https://github.com/jsor/jcarousel/issues/370#issuecomment-5552071

You could try it.

Just add this after scroll: <?php echo $scroll; ?>,:

    itemLoadCallback: {
        onBeforeAnimation: function(carousel, state){
            var w = 0;
            var margin_between_items = 10;
            jQuery('#selector li').each(function(i, el){
                w += parseInt(jQuery(el).width() + margin_between_items);
            });
            jQuery('#selector').css('width', w);
        }           
    }

We haven’t tested it though.

Regards,
ThemeBurn team

Then, currently it is not possible to make the autoscroll infinite. Let’s hope this plugin will be replaced with a more recent one in the next opencart releases.

Regards,
ThemeBurn team