I can not use ssh to connect to the debian sshd

I have a debian server, in my mac I use filezilla to ssh connect to it, but get the below error: Error: Disconnected: No supported authentication methods available (server sent: publickey) Error: Can not connect to server the below is the debian sshd's config: Host * PasswordAuthentication yes SendEnv LANG LC_* HashKnownHosts yes GSSAPIAuthentication yes PermitRootLogin yes Seems can not use password to connect, why. --- **EDIT-01** In my Mac to connect I get permission error:

$ ssh root@192.168.64.2
root@192.168.64.2: Permission denied (publickey).