SFTP proxy error

I just downloaded WinSCP and am attempting to setup an FTP. I receive the following transfer when it tries to access the other server:

SSE2636 Command rejected due to sftp proxy policy settings: SSH_FXP_INIT on new sftp connection

I am new to all of this and have no idea what this means. Note: We are successfully connecting and transferring to this same server using FileZilla. I downloaded WinSCP so I could create a script and schedule the process. (again, all new to me) Any help would be greatly appreciated....

According to this page:
<invalid hyperlink removed by admin>
it's a bug in your server or SFTP proxy (whatever that is).

They suggest you must configure WinSCP to use SFTP version 3.

You can do this here:
https://winscp.net/eng/docs/ui_login_sftp

To set this in scripting, see:
https://winscp.net/eng/docs/rawsettings

Issue 2247 – Limiting SFTP version to 3 with non-well-known SFTP servers as a workaround for interoperability issues