Expected host key was not configured, use -hostkey switch.\r\nHost key fingerprint is Authentication

I'm trying to make an SFTP connection to Winscp via script, but I only get the following error: Message = "Expected host key was not configured, use -hostkey switch. \ R \ nHost key fingerprint is ssh-ed25519 255 asPhtyu2PJhHFf + odPz49fdvugdr5XwfOIc4AD18oto = . \ r \ nAuthentication failed. "
The connection through winscp works, but the connection generating a .bat or C # script does not work. I use the connection with a .ppk certificate
Can someone help me?

I believe the message is pretty clear.
Please see https://winscp.net/eng/docs/scripting#hostkey

WinSCP GUI can generate a full script template for you, including the -hostkey switch:
https://winscp.net/eng/docs/ui_generateurl#script

I have this issue – and, I did use the GUI to generate a full script template. But my authentication is still rejected. I've reported the issue here.