The error was:
javax.servlet.ServletException: DecorationTag: Couldn't find database name for "auth" on site "www.cps-forces.org".
The problem was that we were running the system on a temporary server (robotst.eecs.berkeley.edu).
The fix was to edit
/home/www/java/cps-forces/WEB-INF/classes/gsrc/conf/site.properties
#sitename = www.cps-forces.org sitename = robotst.eecs.berkeley.edu #mailServer = cps-forces.org mailServer = robotst.eecs.berkeley.edu
And then Restart Tomcat.