still can't connect with 0.6

Hi, since my provider only accept SFTP, this plugin should save my life! Unfortunately I’m not able to get it work!
“Error: There was an error connecting to the server, Please verify the settings are correct.”
Not sure what is wrong, when using an SFTP client with the same credentials, this works fine!
I’ve tried both simple password and RSA keys. None of these methods are working.
I was hoping 0.6 would finally work but not the case for me :-/
I’ve found in some older post a way to enable “debug” but this was not working either! Maybe outdated information…

I may be missing something obvious. Could anyone help?
It would be great if someone could tell me where/how to check for the failure log.

Thanks in advance

https://wordpress.org/plugins/ssh-sftp-updater-support/