Hello again.

I have just analyzed your website (the information the web browser provides about it).

The message “$ is not defined” is because there is JavaScript/jQuery code before adding the jQuery library, for example:

<script>
        var reload = 0;
        $(document).ready(function(){
            $('[data-toggle="tooltip"]').tooltip();
        });
</script>

appears many lines before:

<script src="/js/jquery.js"></script>

at the root of the website. This problem can be solved by placing the invocation of jquery.js before the scripts that are causing the problem, or by placing those scripts after the invocation of jquery.js.

Still it doesn’t seem to me that this is related to the new product display issue, that seems to be a backend issue, some caching system, or maybe your backend keeps connecting to the old database on the old server.

I’m sorry I can’t help you more, regards.