lftp problem ...

Thank you for reply .. i have changed with rsync command..
rsync -avzP --delete -e ssh /home/stefano/pantheonrepo ste74@ftp.tuxfamily.org:/home/repoarch/repoarch-repository/
this command work fine for 3 weeks , today is impossible to connect..
i want reupload the key ssh in according with this
http://faq.tuxfamily.org/User/En#Upload … public_key
but this is the response ..
[stefano@ste74-pc ~]$ scp -v  ~/.ssh/id_rsa.pub ste74@ssh.tuxfamily.org:/home
Executing: program /usr/bin/ssh host ssh.tuxfamily.org, user ste74, command scp -v -t /home
OpenSSH_7.1p1, OpenSSL 1.0.2d 9 Jul 2015
debug1: Reading configuration data /home/stefano/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to ssh.tuxfamily.org [212.85.158.7] port 22.
debug1: Connection established.
debug1: identity file /home/stefano/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/stefano/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.1
ssh_exchange_identification: read: Connection reset by peer
lost connection
[stefano@ste74-pc ~]$

i use an archlinux system

Thank you
Stefano