ok ho abilitato ftp messo user e password, root lasciato vuoto appena salvato mi sono venuti fuori questi messaggi:
Si è verificato un errore! Impossibile aprire il file configuration.php per la scrittura!
JFTP::connect: Could not connect to host "127.0.0.1" on port 21
JFTP::_putCmd: Not connected to the control port
JFTP::_mode: Bad response
JFTP::_passive: Not connected to the control port
JFTP::write: Unable to use passive mode
JFTP::connect: Could not connect to host "127.0.0.1" on port 21
JFTP::_putCmd: Not connected to the control port
JFTP::_putCmd: Not connected to the control port
JFTP::delete: Bad response
JFTP::connect: Could not connect to host "127.0.0.1" on port 21
JFTP::_putCmd: Not connected to the control port
JFTP::_mode: Bad response
JFTP::_passive: Not connected to the control port
JFTP::write: Unable to use passive mode
grazie per la pazienza!!