Hi Susanna Pejrano
This seems to be an issue in your web server.
And check the .htaccess file in your Sugar root directory.
But I agree to André Lopes, most probably this is an issue of your webserver settings. Perhaps there was an update on the server. Normally you should be able to call http://crm.coopaudiendo.it/sugar_version.json to get the current version of your system. As this is a simple file load it should always work when the webserver works.
But yours does not work...
Retrieving data ...