Error 404

hi,

I´am working with template Restaurant en joomla 2.5, and I have a problem. Everytime I asociate a submenu to the main menu with a joomla article, it appears the 404 (Page Not Found) Error. This seems to be a constant for all the submenus that I try to utilize with any component.

I can really use your help with this problem

the url of the website is: http:/www.harveys.com.co/ one of the submenu is galería

Hi,
Iam working on template Restaurant, but I´am having problems with the version for the mobile phones, since in sistems like apple and blackberry can be seen perfectly, but in systems like android it seem to be desactivated, and shows a login and register and with the original design of the template, there has to be a way to configure the template to be visualized in all smartphones

Need so much your help and tks for everything