FTP 501 Syntax error in parameters or arguments

[mrm1]

I am having issues connecting to a FTP site I have been using for years.
Here is a summary from the FTP log. I have no problem connecting to the site using WinSCP on the same computer. I have no issues connecting to other FTP sites in DOpus. Any suggestions would be appreciated.

Opening Connection ftp.********.co.uk:21
220 prositeFTP Server Ready
331 User ******** logged in, needs password
230 Password OK, FTP server ready
215 UNIX Type: A
211-Extensions supported:
AUTH TLS
EPRT
EPSV
HOST
MDTM
MFCT
MFF modify;create;
MFMT
MLST type*;size*;UNIX.mode*;modify*;create*;UNIX.uid*;UNIX.gid*;
PBSZ
PROT
REST STREAM
SITE BLST
SIZE
211 END
501 Syntax error in parameters or arguments.
200 ASCII transfer mode active.
257 "/"
250 Successful (/htdocs/)
257 "/htdocs"
227 Entering Passive Mode (213,171,193,5,231,215).
150 Opening data connection.
501 Syntax error in parameters or arguments.
Connection closed

[Leo]

Most likely the server at the other end has changed, and doesn't support one of the commands it is being sent (e.g. to query or enable UTF8 support).

If you turn on debug logging, the FTP Log will show the commands being sent to the server, which should help here:

[mrm1]

Thanks, these are the errors being shown

I have enabled "Use custom list command" as below, not sure if it the correct thing to do, and now have access to the site. Thanks for pointing me in the right direction.