Problem with moving files from remote folder to local folder

$period = [TimeSpan]::FromSeconds(20)
$lastRunTime = [DateTime]::MinValue 
while (1)
{
    while ((Get-Date) - $lastRunTime -lt $period) { 
        Start-Sleep -Milliseconds 5000
        Write-Host "Waiting for new files..."
    }
 
    $lastRunTime = Get-Date
 
    try
    {
        # Load WinSCP .NET assembly
        Add-Type -Path "C:\Program Files (x86)\WinSCP\WinSCPnet.dll"
     
        # Setup session options
        $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
            Protocol = [WinSCP.Protocol]::Sftp
            HostName = "BLABLABLA"
            UserName = "BLABLABLA"
            Password = "BLABLABLA"
            GiveUpSecurityAndAcceptAnySshHostKey = "true"
        }
     
        $session = New-Object WinSCP.Session
     
        try
        {      
            # Connect
            $session.Open($sessionOptions)
     
            # Set transfer options
            $remotePath = "/usr/BLABLA/REMOTEPATH/"
            $transferOptions = New-Object WinSCP.TransferOptions
            $transferOptions.TransferMode = [WinSCP.TransferMode]::Ascii
 
            $transferResult = $session.GetFiles("/usr/BLABLA/REMOTE PATH/*.txt",
                "C:\Users\BLABLA\LOCALFOLDER-A\", $False, $transferOptions)
          
            $transferResult.Check()
 
            foreach ($transfer in $transferResult.Transfers)
            {
                if ($transferResult.IsSuccess)
                {
                    # Download success message
                    Write-Host ("File {0} was downloaded successfully..." -f $transfer.FileName.TrimStart("/usr/BLABLA/REMOTE PATH/"))
                    $FileName = $transfer.FileName.TrimStart("/usr/BLABLA/REMOTE PATH/")
                    $A = (get-date (get-date) -UFormat "%Y-%m%-%d %H:%M")
                    Add-Content C:\Users\BLABLA\LOCALFOLDER-A\Log\LogFile.log "$FileName | $A | Downloaded"
                    #MOVE OPERATION IS HERE: (REMOTE TO LOCAL-B (ARCHIVE FOLDER))
                    
                    $transferResult2 = $session.GetFiles("/usr/BLABLA/REMOTE PATH/*.txt",
                       "C:\Users\BLABLA\LOCALFOLDER-B\", $True, $transferOptions)
                   
                }
                elseif (!$transferResult.IsSuccess)
                {
                    #MOVE OPERATION IS HERE: (REMOTE TO LOCAL-C (ERROR FOLDER))
               
                    $transferResult3 = $session.GetFiles("/usr/BLABLA/REMOTE PATH/*.txt",
                        "C:\Users\BLABLA\LOCALFOLDER-C", $True, $transferOptions)
                    # Download error message
                    Write-Host ("Error downloading file {0}!" -f $transfer.FileName, $transferResult.Failures[0].Message)
                    $B = (get-date (get-date) -UFormat "%Y-%m%-%d %H:%M")
                    Add-Content C:\Users\BLABLA\LOCALFOLDER-A\Log\LogFile.log "$FileName | $A | Download error", $transferResult.Failures[0].Message
                }
            }
        }
        finally
        {
            # Disconnect, clean up
            $session.Dispose()
        }
 
    }
 
    catch [Exception]
    {
        Write-Host ("Error: {0}" -f $_.Exception.Message)
    }
    Start-Sleep -s 10
}