Upload windows event logs to pastebin

$now=get-date
$startdate=$now.adddays(-1)

$el = get-eventlog -log System -After $startdate -EntryType Error, Warning, Information

$filename = $el[0].MachineName.Replace(".ad.kanersps.pw", "") + "_" + (Get-Date -UFormat "%d-%m-%Y_%H-%M")

$Body = @{
    api_dev_key = 'devkey'
    api_user_name = 'username'
    api_user_password = 'userpassword'
}

$LoginKey = (Invoke-WebRequest -Uri "https://pastebin.com/api/api_login.php" -UseBasicParsing -Body $Body -Method Post).Content

$Content = @"
| Index | TimeGenerated | EntryType | Source | InstanceID | Message |
|-------|------|-----------|--------|------------|---------|
"@

ForEach($event in $el){
    $Content += "`n| " + $event.Index + " | " + $event.TimeGenerated + " | " + $event.EntryType + " | " + $event.Source + " | " + $event.InstanceId + " | " + $event.Message.replace("`n",", ").replace("`r",", ") + " |"
}

$Body = @{
    api_dev_key = 'devkey'
    api_paste_code = ($Content)
    api_paste_private = 2
    api_paste_name = $filename
    api_option = 'paste'
    api_user_key = $LoginKey
    api_paste_format = "markdown"
}

Invoke-WebRequest -Uri "https://pastebin.com/api/api_post.php" -UseBasicParsing -Body $Body -Method Post