error running a script

when im running this powershell script:

$CPU = (gwmi Win32_PerfFormattedData_PerfProc_Process | ? {$_.Name -eq 'XXXX'}).PercentProcessorTime
if($CPU -ge 90)
{
Get-Process -Name XXXX | Stop-Process -Force
Start-Service -Name XXXX
Function sendEmail ([String] $body)
{
    $MailMessage = New-Object System.Net.Mail.MailMessage
    $MailMessage.From = “XXXX@XXXX.local”
    $MailMessage.To.Add(“XXXX@XXXX.com”)
    $MailMessage.Subject = “XXXX!!!”
    $MailMessage.Body = $body
    $MailMessage.Priority = “High”
    $SMTPClient = New-Object System.Net.Mail.SMTPClient
    $SMTPClient.Host = “XXXX-exchange.XXXX.XXXX.com”
    $SMTPClient.Send($MailMessage)

}
Else
{Exit}

Im getting this error message:

what is wrong with my script?

the purpse of this script is: when there is a high cpu on a specified process kill this process and start a specified service and send an email about that, if the condition is not meet just exit

thanks a lot