After leaving the screen for while and coming back and pressing a button:
Exception during request processing:
Caused by javax.servlet.ServletException with message: "viewId:/home.seam - View /home.seam could not be restored."
<pages xmlns="http://jboss.com/products/seam/pages" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.0.xsd" no-conversation-view-id="/home.xhtml" login-view-id="/pages/user/login.xhtml">