As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.
Please include the Alfresco log ($ALFRESCO_HOME/tomcat/logs/catalina.out) showing any exceptions occurring at the time you see this error. Otherwise, it is going to be very difficult to troubleshoot.