www.robertmunozphotography.net is a subdomain of your main domain robertmunozphotography.net and they are not the same as each other.
In your case, if you go to www.robertmunozphotography.net in a browser, you are redirected to robertmunozphotography.net but your URLs use www.robertmunozphotography.net (and the user is no longer on that subdomain).
Try the following embedding code:
<!--START JUICEBOX EMBED-->
<script src="http://robertmunozphotography.net/Galleries/Home/jbcore/juicebox.js"></script>
<script>
new juicebox ({
baseUrl : 'http://robertmunozphotography.net/Galleries/Home/',
containerId : 'juicebox-container',
galleryWidth : '100%',
galleryHeight : '700',
backgroundColor: 'rgba (217,217,217,0)'
});
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->
An absolute URL is a complete path to a file, e.g. 'http://www.example.com/gallery/index.html'.
A relative URL is a path to a file relative to another file (how to get to one file from another), e.g. 'gallery/index.html'.
Using relative URLs, your embedding code would look like the following and as neither www.robertmunozphotography.net nor robertmunozphotography.net are hard-coded, relative URLs will work for both.
<!--START JUICEBOX EMBED-->
<script src="Galleries/Home/jbcore/juicebox.js"></script>
<script>
new juicebox ({
baseUrl : 'Galleries/Home/',
containerId : 'juicebox-container',
galleryWidth : '100%',
galleryHeight : '700',
backgroundColor: 'rgba (217,217,217,0)'
});
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->