<em>@alessiob 232531 wrote:</em><blockquote>now it’s fine
i’ve spent hours to reinstall
it’s the second time it disappear completely, files are there , configuration.php seems modified, page is not loaded
i will change template, it s first time its happend in years and happend twice in a week</blockquote>
Could be due to file hacks. I would suggest you to please go through this doc page which contains many useful link redirects::
http://docs.joomla.org/Security
Also, Ensure to have configuration.php file unwritable
You can also use this extension for health check and security measures::
http://extensions.joomla.org/extensions/access-a-security/site-security/site-monitoring/7013