[xwiki-users] Error after updating from 7.4.2 to 8.0.0

Ubuntu 14.0.4 xwiki repo install kept original xwiki.cf and /etc/xwiki/hibernate.cfg.xml then manually edited to add newness then restarted tomcat distribution wizard ran and completed, changed xwikiadmin users, but logged on as superadmin to resolve however, now "Pages" fails to display looks like http://pasteboard.co/2kA88wLR.png Cheers