Не пойму что может быть не так в работе скрипта

# Disable Active Directory users in a domain or an OU that have not logged on within X days.
# Save the list of disabled users to a Log file
 
# Log file
$LogFolder = "C:\Scripts\Disable-Inactive-Users\Log"
$LogFile = $LogFolder + "Disable-Inactive-Users"
 
# Search base - Domain or Organizational Unit to search - use Distinguished Name (DN)
$OU = "OU=Users,OU=RU,DC=test"
 
# Inactive users OU
$InactiveUserOU = "OU=Disabled,OU=Users,OU=RU,DC=Test"
 
# Number of Days a user has not logged on.
# Also make sure the user has not been created within this time.
$UnusedDays = 3
 
# Get current date in a sortable format
$CurrentDate = Get-Date -format yyyy_MM_dd
$CurrentTime = Get-Date -format HH_MM_ss
 
# Get the Current Date minus UnusedDays
$DateLastActive = (Get-Date) - (new-timespan -days $UnusedDays)
#echo $DateLastActive
 
# Convert Current Date to Time Stamp
$DateLastActiveTimeStamp = (Get-Date $DateLastActive).ToFileTime()
#echo $DateLastActiveTimeStamp
 
# Add current date to log file name
$LogFile = $LogFile + "_Date_" + $CurrentDate + "_Time_" + $CurrentTime + ".csv"
 
# Never used date
$NeverUsed = (01/01/1601)
 
# Get Users and set variable
$ADUsersForWork = Get-ADUser -Filter { (((lastLogon -lt $DateLastActiveTimeStamp) -or (-not (lastLogon -like "*"))) -and (whenCreated -lt $DateLastActive)) } -SearchBase "$OU" -Prop DisplayName,DistinguishedName,whenCreated,lastLogon,lastLogon,Description
 
# Get Users and output to log file
echo $ADUsersForWork | Select DisplayName,DistinguishedName,whenCreated,lastLogonTimestamp,Description,@{n="lastLogonDate";e={[datetime]::FromFileTime($_.lastLogonTimestamp)}} | Out-File $LogFile
 
# Set description and move to Inactive OU
ForEach($usr In $ADUsersForWork) {
# disable user
dsmod user $usr.DistinguishedName -disabled yes
# new description
$new_desc = "Account Disabled Date: " + $CurrentDate
Set-ADUser $usr.DistinguishedName -Description $new_desc
# move to new OU
Move-ADObject -Identity $usr.DistinguishedName -TargetPath $InactiveUserOU
}

$cred = Get-Credential -UserName 'test\admin'
Set-ADUser -Identity user1 -Office '111' -Server 'dc1.test.ru' -Credential $cred

$cred = Get-Credential -UserName 'test\admin'

$cred = Get-Credential -UserName 'test\admin'
$cred | Export-CliXml -Path 'c:\temp\cred.xml'

$cred = Import-CliXml -Path 'c:\temp\cred.xml'