Q:

Connecting to vps via sftp using Filezilla

edit start : some background before my question:
I used to connect to my vps fine with FileZilla
Now, I did a do-release-upgrade on the server and I can't connect with FileZilla. But I didn't change any parameter in FileZilla on my laptop, so I guess that the problem is coming from my server, but if you think that it is a FileZilla issue and that I'd rather check FileZilla Forum, let me know.
edit end
I try to connect to my server using sftp. In command line,
sftp -P 22 username@xx.xxx.xx.xxx

runs fine. But with FileZilla, I get 
Response:   fzSftp started
Command:    open "username@xx.xxx.xx.xxx" 22
Error:  Connection timed out
Error:  Could not connect to server

What am I missing?

A:

Command:    open "username@xx.xxx.xx.xxx" 22

This should be only
Command:    open xx.xxx.xx.xxx 22

Username is send in later stages and have probably different field in the Filezilla configuration:

