it says

"* No such user in user list"

Code:
on @*:TEXT:!deop &:#: {

  if ($2 !ison #) notice $nick User not found.

  elseif ($nick isop #) { 
    mode # -o $2 
    msg L chanlev # $2 -ao
    ruser dew $right($address($nick,0),-2) 
    notice $nick Done. 
  }

  else {

    notice $nick You are not allowed to use this command.

  }

}