Batch File or Script Error?

@echo off
:Start
REM download new data from <location>
powershell.exe -File C:/dtl_ftp/bin/downloadNewFiles.ps1 -sessionURL "sftp://username:password;fingerprint=ssh-rsa redacted=@IP:port/" -localPath "C:/dtl_ftp/Temp/folder/ -remotePath "/" -listPath "c:\dtl_ftp\conf\location_downloaded.txt" -sessionLogPath "C:\dtl_ftp\logs\log.log"
REM push to active folder
move c:\dtl_ftp\Temp\folder\*.* c:\dtl_ftp\Dowloads\folder
:Done
exit

param (
    # Use Generate Session URL function to obtain a value for -sessionUrl parameter.
    $sessionUrl = "sftp://user:mypassword;fingerprint=ssh-rsa-xx-xx-xx@example.com/",
    [Parameter(Mandatory = $True)]
    $localPath,
    [Parameter(Mandatory = $True)]
    $remotePath,
    [Parameter(Mandatory = $False)]
    $finalDir,
    [Parameter(Mandatory = $True)]
    $listPath,
    $sessionLogPath = $Null,
    [Switch]
    $pause
)

    finally
    {
        # Disconnect, clean up
        $session.Dispose()
        # Move downloads to the finalDir from parameters
        if ($finalDir) {
          Move-Item -Path $localPath\* -Destination $finalDir
        }
    }

powershell .... > output.txt 2>&1