I would try refreshing the JavaScript for the menu most likely didn't load properly.
The error you receive is from our lytebox. It throws an error because of the iframe our demo is in. Every template that has the lytebox enabled we provide a link in the demo to view the template outside the demo "shell".
Here is the link to view the newest template outside the demo:
http://www.shape5.com/demo/emercantilismRegards,