Coldfusion FTP error: Algorithm negotiation fail

Question

I'm trying to open a cfftp connection, but it is returning error 82 (Algorithm negotiation fail)

My connection:

<cfftp  action = "open"
    connection = "MyConnection"
    username = "xxxxx"
    password = "xxxxx"
    server = "207.59.193.220"
    secure = "yes"
    stopOnError = "No">

<cfdump var = '#cfftp#' />  

It returns the error: 82 Algorithm negotiation fail

Does anyone know why it is happening?

Thanks