custom error page

["K. Johnson" <in...@streetcookie.com>]

I implemented a customFacesServlet that catches servlet errors and redirects the user to a custom error page. 
However, when i select a link on the error page (to let the user go back to one of two pages), nothing happens. 

This is true whenI use a h:commandLink with a hardcoded action="myPage" or
action="#{navigation.getAction}

Does anyone know why this is happening and how to make it work? 

Thank you!