Error: Exception calling "Open" with "1" argument(s): "Connection failed.

param (
    $localPath = "C:\TestesWinSCP",
    $remotePath = "/path/files/"
)
 
try
{
    Add-Type -Path "C:\TestesWinSCP\WinSCPnet.dll"
 
    $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
        Protocol = [WinSCP.Protocol]::"FTP"
        HostName = "example.com.br"
        PortNumber = "990"
        UserName = "YYYYYY"
        Password = "********"
    }
 
    $session = New-Object WinSCP.Session
 
    try
    {
        $session.Open($sessionOptions)
        
        $directoryInfo = $session.ListDirectory($remotePath)
       
        $latest =
            $directoryInfo.Files |
            Where-Object { -Not $_.IsDirectory } |
            Sort-Object LastWriteTime -Descending |
            Select-Object -First 1
 
        if ($latest -eq $Null)
        {
            Write-Host "No file found"
            exit 1
        }
        
        $session.GetFiles(
            [WinSCP.RemotePath]::EscapeFileMask($latest.FullName), $localPath).Check()
    }
    finally
    {
        $session.Dispose()
    }
 
    exit 0
}
catch
{
    Write-Host "Error: $($_.Exception.Message)"
    exit 1
}