Transfer failed

I have been using SmartFTP very successfully for about 12 months or so to FTP audio mp3 files
to my website. However, something has suddenly gone wrong and I can no longer FTP my
audio files. The log shows the following which I am afraid means very little to me. So could
anyone advise me on how I can best resolve whatever is causing the problem?

[11:07:42] SmartFTP v2.0.999.5
[11:07:45] Resolving host name "ftp.geocities.com"
[11:07:45] Connecting to 66.218.77.40 Port: 21
[11:07:48] Connected to ftp.geocities.com.
[11:07:48] 220-Welcome to the Yahoo! Web Hosting FTP server.
[11:07:48] 220-Need help? Get all details at:
[11:07:48] 220-http://help.yahoo.com/help/us/webhosting/gftp/
[11:07:48] 220-
[11:07:48] 220-No anonymous logins accepted.
[11:07:48] 220 Yahoo!
[11:07:48] USER mickle62001
[11:07:49] 331-Enter your Yahoo! member password
[11:07:49] 331
[11:07:49] PASS (hidden)
[11:07:49] 230-You are using 91.0% of your subscribed disk space
[11:07:50] 230-You have 45.031 MB of space available
[11:07:50] 230
[11:07:50] SYST
[11:07:50] 215 UNIX Type: L8 Version: BSD-199506
[11:07:50] Detected Server Type: UNIX
[11:07:50] FEAT
[11:07:50] 500 'FEAT': command not understood.
[11:07:50] TYPE I
[11:07:50] 200 Type set to I.
[11:07:50] REST 0
[11:07:50] 350 Restarting at 0. Send STORE or RETRIEVE to initiate transfer.
[11:07:50] PWD
[11:07:51] 257 "/mickle62001" is current directory.
[11:07:51] CWD /mickle62001/dtr
[11:07:51] 250 CWD command successful.
[11:07:51] PWD
[11:07:51] 257 "/mickle62001/dtr" is current directory.
[11:07:51] TYPE A
[11:07:51] 200 Type set to A.
[11:07:51] PASV
[11:07:51] 227 Entering Passive Mode (66,218,77,40,233,184)
[11:07:51] Opening data connection to 66.218.77.40 Port: 59832
[11:07:51] LIST -aL
[11:07:52] 150 Opening ASCII mode data connection for /mickle62001/dtr/-aL .
[11:07:52] 10819 bytes transferred. (23.3 KB/s) (453 ms)
[11:07:52] 226 Transfer complete.
[11:08:35] Remote file exist check: "smelly.mp3".
[11:08:35] TYPE I
[11:08:35] 200 Type set to I.
[11:08:35] SIZE smelly.mp3
[11:08:35] 213 286720
[11:08:35] MDTM smelly.mp3
[11:08:35] 213 20061015095703
[11:08:35] No rule matched. Default Action="Ask".
[11:08:37] PASV
[11:08:37] 227 Entering Passive Mode (66,218,77,40,187,91)
[11:08:37] Opening data connection to 66.218.77.40 Port: 47963
[11:08:37] STOR smelly.mp3
[11:08:38] 150 Opening BINARY mode data connection for /mickle62001/dtr/smelly.mp3 .
[11:09:28] Transfer Timeout (40s). Closing data connection.
[11:09:28] 294912 bytes transferred. (5.66 KB/s) (00:00:50)
[11:10:08] Timeout (40s).
[11:10:08] Active Help: https://www.smartftp.com/support/kb/74
[11:10:08] Client closed the connection.
[11:10:08] Transfer failed.

With best wishes

Rockrover