Can you please share the full debug logs from FileZilla for a failed connection attempt so we can see what FileZilla is doing? This article explains how to get this information.
And now i get this on filezilla: Error: Connection attempt interrupted by user
Status: Disconnected from server
Status: Resolving address of ftpupload.net
Status: Connecting to 81.130.111.239:21…
Status: Connection attempt failed with “ECONNREFUSED - Connection refused by server”.
Error: Could not connect to server
Status: Waiting to retry…