Execute Powershell on drive sensor alert. How to pass Device and Drive parameters

On lines 19 & 20 I am trying to get the Device and drive that is alerting and kicking off the PowerShell script to tell us the top 10 largest files.

2 questions how do I get the parameters from the alert and how do I get PRTG to execute the script on drive sensors that are "Down" and not in a warning?

Any help would be appreciated.

$scriptBlock = {
    param ([string]$Path)
#$ErrorActionPreference = "silentlyContinue"
$list = New-Object 'Collections.ArrayList'
$files =(robocopy /bytes /njh /njs /np /nc /fp /ndl  /l /s "$Path" 'NoDestination') 



foreach($file in $files) {
    $data = $file.split("`t")
    $null = $list.add([tuple]::create([uint64]$data[3], $data[4]))
}

$list.sort() # sort by size ascending
$result = $list.GetRange($list.count-10,10) 
$result  #| select item2, item1 | sort item1 -Descending
}

 $device = %Device
 $DriveAlerting = %sensor # needs to b einthe format "D:\"
 $result= Invoke-Command -ComputerName $device -ScriptBlock $scriptBlock -ArgumentList $DriveAlerting


$mailOutput =$result | select -property  @{N='Device';E={$_.PSComputerName}}, @{N='Path';E={$_.Item2}}, @{N='Size in GB';E={($_.Item1/1GB)}} | sort 'Size in GB' -Descending


#### Create the email
$msg = New-Object Net.Mail.MailMessage


$style = "<style>BODY{font-family: Arial; font-size: 10pt;}"
$style = $style + "TABLE{border: 1px solid black; border-collapse: collapse;}"
$style = $style + "TH{border: 1px solid black; background: #dddddd; padding: 5px; }"
$style = $style + "TD{border: 1px solid black; padding: 5px; }"
$style = $style + "</style>"



$Msg = @{
		To = xxxxxxxx
		From = XXXXXXXX
		Body = $mailOutput | ConvertTo-Html -Head $Style -Body "<H2>Top 10 largest files</H2>"  | Out-String #  
		subject = "$device - $((Get-Date).ToShortDateString())"
		SmtpServer = xxxxxxx
		BodyAsHtml = $True

	}

Send-MailMessage @Msg