Se ricevi l'errore:

Could not make configuration.php writable - Could not make configuration.php unwritable

Apri il file:

administrator/components/com_config/controllers/application.php

Trova il seguente codice:

if (!$ftp['enabled'] && !JPath::setPermissions($fname, '0755')) {

                        JError::raiseNotice('SOME_ERROR_CODE', 'Could not make configuration.php writeable');

                }

e sostituiscilo con questo:

if (!$ftp['enabled'] && JPath::isOwner($fname) && !JPath::setPermissions($fname, '0644')) {

         JError::raiseNotice('SOME_ERROR_CODE', 'Could not make configuration.php writeable');

      }