launchpad dput/FTP package by team?

1. Several days after dput , there is NO package updating at all on launchpad, it looks I didn't have "Signed Ubuntu Code of Conduct" activated.
2. I tried to gpg -u XXXXXXXX --clearsign UbuntuCodeofConduct-2.0.txt.asc, by using my team account, but NOTHING happened again. Therefore, I use my personal account instead, and this time, I got "Signed Ubuntu Code of Conduct" registered as "Yes".
However, I seriously prefer using my team account to upload my package, instead of personal account.
3. Anyway, I dput with my personal account this time, and it's 1 day already again. NOTHING has ever been uploaded to launchpad.
4. I tried to connect launchpad FTP via Filezilla, and I got the following info:

Status: Resolving address of ppa.launchpad.net
Status: Connecting to 91.189.95.83:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/"
Command: TYPE I
Response: 200 Type set to I.
Command: PASV
Response: 227 Entering Passive Mode (91,189,95,83,164,51).
Command: LIST
Response: 502 Command 'LIST' not implemented
Error: Failed to retrieve directory listing

Can anybody please give me a hand?
Thank you very much...