You need to use a client supporting PRET (PRE Transfer) to use PASV

I have a new site I was trying to use and I keep getting this error

You need to use a client supporting PRET (PRE Transfer) to use PASV

Never have I seen this before. is there a setting I am missing?
Funny thing if I use an old FlashFXP program it works but not something new like yours. I have been using yours for years and never seen this before.

Could not retrieve directory listing
You need to use a client supporting PRET (PRE Transfer) to use PASV

WinSCP does not support the rarely used PRET command.
You can vote for it, here:
Issue 2178 – Support for FTP PRET command