File manager giving problem of Connection reset

When i try to Upload files with file manager it gives me error of connection reset, What is wrong?????

Who knows? You should check directadmin logs either in directadmin web interface or in a root shell. If it does not contain any hint, then you might need to run directadmin in a debug mode, and see what it might complain about.

Update

There was an error with sshd, when i resolve this, this error also gone.
Thanks for support