Apache runs as the user www-data:www-data, we just installed files as your local user. So we need to make sure Apache can access the files Open up Terminal.app run the following command. *Note: If you have changed the apache username and group, please use that instead of _www:_www* chown -R _www:_www /Library/Server/Web/Data/Sites/.com

The new installer can be found at: http://topicdesk.com/downloads/roundcube