Forums Scripts & Popups (Twitch) Do you see a problem with this code?

raw USERNOTICE:*: {
  if (resub isin $msgtags) {
    if ($msgtags(room-id).key == <ID>) {
      if ($2- == $null) {
      	describe $target <message>
      {
      else {
      	describe $target <message>
      }
    }
  }
}