error: Received disconnect from 89.17.123.120: 14: No supported authentication methods available [preauth]

Hello,

i get follow Message.

error: Received disconnect from 89.17.123.120: 14: No supported authentication methods available [preauth]

Why? FileZilla and Putty work fine with a SSH-Key, but no HeidiSQL? I use SSH-Key for Login on my Server

If I set PasswordAuthentication yes HeidiSQL work if i set PasswordAuthentication no HeidiSQL not work in auth.log i get this Message

error: Received disconnect from 89.17.123.120: 14: No supported authentication methods available [preauth]

but Putty and FileZilla working.

I want to login with a SSH-Key and not Password.

HELP please !!!! :-)