The configuration file {/var/www/html/revistas/analytics/config/config.ini.php} has not been found or could not be read.

The Piwik configuration file couldn't be found and you are trying to access a Piwik page.
» You may install Piwik now
If you installed Piwik before and have some tables in your DB, don't worry, you can reuse the same tables and keep your existing data!