I ask you again, can you please share the logs from FileZilla. This is how you can get them:
I would like to know more about why it is unable to connect. And like I said before: FTP is working fine, and when I tested it yesterday I was using ftpupload.net as the domain.
I want to help you with this. So please give me the information I need to do this, not just your interpretation of what it means.