FTP read only?

Hi all,

today i accessed in my ftp space to put a pdf (5-6MB), but the access is now "Read only".
I cannot create folders, put files or change permissions.

There is a problem in the ftp daemon?

The error is: "Broken pipe". Please see below.

here the session log:

max@dell:~/Downloads$ ftp -p -d offgrid2.altervista.org
Connected to offgrid2.altervista.org.
220---------- AlterVista FTP ----------
220-You are user number 1 of 180 allowed.
220-Local time is now 10:52. Server port: 21.
220-This is a private system - No anonymous login
220 You will be disconnected after 5 minutes of inactivity.
ftp: setsockopt: Bad file descriptor
Name (offgrid2.altervista.org:max): offgrid2
---> USER offgrid2
331 User offgrid2 OK. Password required
Password:
---> PASS XXXX
230-Your FTP download speed is limited. Use the browser to download large size files
230-User offgrid2 has group access to: membri
230 OK. Current restricted directory is /
---> SYST
215 UNIX Type: L8
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> binary
---> TYPE I
200 TYPE is now 8-bit binary
ftp> cd files
---> CWD files
250 OK. Current directory is /files
ftp> mput Bonsignori_tesi.pdf
mput Bonsignori_tesi.pdf? y
ftp: setsockopt (ignored): Permission denied
---> PASV
227 Entering Passive Mode (78,129,205,124,121,157)
---> STOR Bonsignori_tesi.pdf
150 Accepted data connection
netout: Broken pipe
226-Error during write to file
226 Transfer aborted
ftp> bye
---> QUIT
221-Goodbye. You uploaded 0 and downloaded 0 kbytes.
221 Logout.
max@dell:~/Downloads$