WARNING: HOTSKP036: Cannot index into a null array.

Hello

I keep getting the error about null array and as such I won't let me update my SQL.

As for the HOTSKP036 is the computer I'm using to remote access the Windows 2012 R2 server it is not in any of the .txt

C:\Scripts\ServerScripts\TEST SERVER SCRIPTS\TEST IN THIS BEFORE GOING FOR.ps1
WARNING: HOTSKP036: Cannot index into a null array.

[string]$SqlServer  = 'DC01'
[string]$Database  = 'class1'

  [int]$ConnectionTimeout  = 30

  [int]$QueryTimeout  = 120

$serv = Get-Content "\\DC01\ServerScripts\Computers.txt"
invoke-command -computerName $serv -scriptBlock { start-service RemoteRegistry }

Write-Verbose ("Creating  SQL Connection to {0}" -f $sqlServer)

#Opening connection to sql server

$sqlConnection = New-Object System.Data.SqlClient.SqlConnection
$sqlConnection.ConnectionString = "Server=$SqlServer;Database=$Database;Integrated Security=SSPI;Persist Security Info=False;
    User ID=CLASS1\administrator;Initial Catalog=class1;Data Source=DC01\SQLEXPRESS"
$sqlConnection.Open()

Try {

  $WMI['Computername'] = $Computer

$server = ForEach ($Computer in Get-Content "\\DC01\ServerScripts\Serverslist.txt") # Getting Information about servernames needed to be run in the script
{


    $Month = (Get-Date -Format MMMM).ToString() # Gives the Fullname of the month the script is run in.

    #Finding the HDD Info that exits on the Servers
      $Item = @("Name", "MediaType", "Capacity", "FreeSpace")
             #Clear-Host
            # Next follows one command split over four lines by a backtick `
             Get-WmiObject -computername $Computer -query `"Select $([string]::Join(',',$Item)) from Win32_logicaldisk `
                Where MediaType=12" | Sort-Object MediaType, DeviceID `
                | Format-Table $item -auto


                    #Used for finding RaidStatus and if it is healthy
$raidvalues = get-wmiobject -class win32_systemdriver | where-object {$_.displayname -like "*mraid*"}
Write-Host "Raid Config Status is " $raidvalues.Status


$CPUInfo = ((Get-WmiObject Win32_Processor -ComputerName $Computer).MaxClockSpeed)/1000 #Get CPU Information
$OSInfo = Get-WmiObject Win32_OperatingSystem -ComputerName $Computer #Get OS Information
#Get Memory Information. The data will be shown in a table as GB, rounded to the nearest second decimal.
$OSTotalVirtualMemory = [math]::round($OSInfo.FreePhysicalMemory / 1024 /1024, 2)
$OSTotalVisibleMemory = [math]::round(($OSInfo.TotalVisibleMemorySize  / 1024 /1024), 2)
$PhysicalMemory = Get-WmiObject CIM_PhysicalMemory -ComputerName $Computer | Measure-Object -Property capacity -sum | % {[math]::round(($_.sum / 1GB),2)}
$usage = (get-counter -Counter "\Processor(_Total)\% Processor Time" -SampleInterval 1 -MaxSamples 2 |
select -ExpandProperty countersamples | select -ExpandProperty cookedvalue | Measure-Object -Average).average
#$usage = "{0:P}" -f $usage

#This function is for getting data from the CPU on how many cores the server has.
Function Get-CPUs {
    param ($Computer)
        $processors = get-wmiobject -computername $Computer win32_processor
        $cores=0
        if (@($processors)[0].NumberOfCores)
        {
            $cores = @($processors).count * @($processors)[0].NumberOfCores
        }
        else
        {
            $cores = @($processors).count
        }
            $sockets = @(@($processors) | % {$_.SocketDesignation} |select-object -unique).count;


    }

# Space for Antivirus part.



  #The start for inputing to our Database Table.

  $Data  = @(Get-WmiObject  @WMI)
  $Data  | ForEach {

  Write-Verbose  ("{0}-{1}: Updating in SQL database"  -f $Computer,$_.Name)

  $Command  = "INSERT INTO [dbo].[ServerInfoTable] (Servername,Month,CPU,Cores,CPUusage,Memorytotal,Memoryused,
                DeviceID,size,FreeSpace,UsedSpace,RAIDFabrikant,RAIDStatus,AntiVirusVersion,AntiVirusDefination) `

  VALUES ('$($Computer)', '$($Month)', '$($CPUInfo)', '$(($cores),($sockets))', '$($usage)', '$($PhysicalMemory)', '$($PhysicalMemory - $OSTotalVirtualMemory)',
  '$($_.Name)', '$(([Math]::round($_.Capacity/1GB,2)))', '$(([Math]::round($_.FreeSpace/1GB,2)))', '$(([Math]::round(($_.Capacity - $_.FreeSpace)/1GB,2)))',
   '$($_.displayname)', '$($raidvalues.Status)', '$(($productName),($productVersion))', '$($productDefination)')"



  $cmd=new-object system.Data.SqlClient.SqlCommand($Command,$sqlConnection)

  $cmd.CommandTimeout=$QueryTimeout


  $cmd.ExecuteNonQuery() |  Out-Null

  }
  }
 } Catch  {

  Write-Warning  ("{0}: {1}" -f $Computer, $_.Exception.Message)

  }




Write-Verbose ("Closing  connections")

#Closing the sql server connection

if ($sqlConnection.State -eq [Data.ConnectionState]::Open) {
     $sqlConnection.Close()
}