I see a couple of things which might be causing your problem.
(1) You have WP-Juicebox installed (which loads the 'juicebox.js' file into your web page) and you also load the 'juicebox.js' file into your web page manually (at the top of your gallery's embedding code).
The 'juicebox.js' file should be loaded only once per web page.
If you are embedding your gallery manually, then you can disable WP-Juicebox.
(2) The path to the 'juicebox.js' file at the top of your gallery's embedding code in incorrect. The path you use is relative and will be relative to the page containing the embedding code. Therefore, the 'juicebox.js' file should be located here: http://gateslosangeles.com/jbcore/juicebox.js (but it is not there).
(3) As your gallery's embedding code does not feature a configUrl or a baseUrl, Juicebox will expect the gallery's XML file to be named 'config.xml' and to be located in the same directory as the page containing the embedding code. The 'config.xml' file does not see to be there: http://gateslosangeles.com/config.xml
If you copy the contents of your gallery folder (not the folder itself) to the root directory of your web space, then your gallery should display fine.
Otherwise, if you have uploaded your complete gallery folder to your web server somewhere, then you can use the baseUrl method of embedding documented here.
For example, if your gallery folder is named 'my_gallery_folder' and you uploaded the complete gallery folder to your root directory, then you could use the following embedding code (in any page throughout your web site).
<!--START JUICEBOX EMBED-->
<script src="/my_gallery_folder/jbcore/juicebox.js"></script>
<script>
new juicebox({
baseUrl: '/my_gallery_folder/',
containerId: 'juicebox-container',
galleryWidth: '800',
galleryHeight: '600',
backgroundColor: '#222222'
});
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->(The leading slashes in the paths above denotes your root directory.)
When using the baseUrl method, it does not matter where on your web server you upload the gallery folder to as long as the two paths in the embedding code (the path to the 'juicebox.js' file and the baseUrl itself, pointing towards the gallery folder) are correct.