The script I'm having trouble with

alias floodcooldownnote {
  if ( $me !isop $chan ) {
    if ((%flood [ $+ [ $1 ] ]) || ($($+(%,flood,$1,.,$nick),2))) { halt }
    set -u3 %flood [ $+ [ $1 ] ] On
    set -u3 %flood [ $+ [ $1 ] $+ [ . ] $+ [ $nick ] ] On
  }
}
alias meisnotTwitchMod {
  return $iif($msgtags(user-type).key == mod || $mid(#, 2-) == $me, $false)
}

alias IamaTwitchMod {
  return $iif($msgtags(user-type).key == mod || $mid(#, 2-) == $me, $false)
}

alias autokbnote {
  if ( $server == tmi.twitch.tv ) {
    if ( $me isop $chan ) {
      timeout $nick
      halt
    }
    if ( $me isop $chan ) {
      ban $chan $nick 2
      kick $chan $nick
      halt
    }
  }
}
ON $*:TEXT:!adelnote*:#:{
  var %ntchan = $chr(35) $+ $2
  var %nonexistentnote that note doesn't exist.;that note doesn't ring any bells.;that request returned a null value. Maybe the note doesn't exist?;I can't find that note anywhere.;I don't recall having that note.;note was not found in the database.
  IF ( $2 = $null ) { return }
  IF ( $3 = $null ) { return }
  IF ( $4 = $null ) { return }
  IF ( $nick isin %botowners ) {
    IF ( %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] == $null ) {
      floodcooldownnote
      msg $chan $nick $+ , $gettok(%nonexistentnote,$rand(1,6),59)
      return
    }
    UNSET %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $4 ] ]
    UNSET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $3 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ]
    UNSET %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $4 ] ]
    IF ( $4 == $nick ) {
      floodcooldownnote
      MSG $chan $nick $+ , your message has been deleted.
      return
    }
    floodcooldownnote
    MSG $chan $nick $+ , $4 $+ 's message has been deleted.
  }
}
ON $*:TEXT:!sadelnote*:#:{
  var %ntchan = $chr(35) $+ $3
  var %noteexist that note doesn't exist.;that note doesn't ring any bells.;that request returned a null value. Maybe the note doesn't exist?;I can't find that note anywhere.;I don't recall having that note.;note was not found in the database.
  IF ( $2 = $null ) { return }
  IF ( $3 = $null ) { return }
  IF ( $4 = $null ) { return }
  IF ( $nick isin %botowners ) {
    IF ( %notes_for. [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $5 ] ] == $null ) {
      floodcooldownnote
      msg $chan $nick $+ , $gettok(%noteexist,$rand(1,6),59)
      return
    }
    UNSET %notes_for. [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $5 ] ]
    UNSET %note_from_to. [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] [ $+ [ . ] ] [ $+ [ $5 ] ]
    UNSET %note_info. [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ %ntchan ] ] [ $+ [ . ] ] [ $+ [ $5 ] ]
    IF ( $4 == $nick ) {
      floodcooldownnote
      MSG $chan $nick $+ , your message has been deleted.
      return
    }
    floodcooldownnote
    MSG $chan $nick $+ , $4 $+ 's message has been deleted.
  }
}
ON $*:TEXT:!delnote*:#:{
  var %thenoteinfo = $nick $2
  var %doesnotexist that note doesn't exist.;that note doesn't ring any bells.;that request returned a null value. Maybe the note doesn't exist?;I can't find that note anywhere.;I don't recall having that note.;note was not found in the database.
  IF ( $nick isin %bannedusers ) { autokbnote }
  IF ( $nick isin %twitchbots ) { return }
  IF ( $2 = $null ) { return }
  IF ( %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] == $null ) {
    floodcooldownnote
    MSG $chan $nick $+ , $gettok(%doesnotexist,$rand(1,6),59)
    return
  }
  IF ( %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] != %thenoteinfo ) {
    IF ( $nick !isin %botowners ) {
      floodcooldownnote
      MSG $chan $nick $+ , Unauthorized
      return
    }
  }
  UNSET %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ]
  UNSET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ] [ $+ [ . ] ] [ $+ [ $2 ] ]
  UNSET %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ]
  IF ( $2 == $nick ) {
    floodcooldownnote
    MSG $chan $nick $+ , your message has been deleted.
    return
  }
  floodcooldownnote
  MSG $chan $nick $+ , your message for $2 has been deleted.
}

ON $*:TEXT:!adminnote*:#:{
  var %notevaradmin1 $server $+ . $+ $2 $+ . $+ $3 $+ . $+ $4
  var %notevaradmin2 $server $+ . $+ $2 $+ . $+ $4
  var %adminrandnotemsg Message from $3 to $4 $+ : $5- $+ ;Note left for $4 by $3 $+ : $5- $+ ;Message left for $4 by $3 $+ : $5-
  IF ( $nick isin %botowners ) {
    IF ( $2 = $null ) { return }
    IF ( $3- = $null ) { return }
    inc %note_id
    inc %note_id. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ]
    SET %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] $3 $4

    ; set %notes_for.* variable that contains the names of everyone who has left a note for the targeted user
    SET %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] $3
    ECHO $chan -- Variable %note_from_to. $+ %notevaradmin2 created --
    SET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] [ $+ [ . ] ] [ $+ [ $3 ] ] [ $+ [ . ] ] [ $+ [ $4 ] ] $gettok(%adminrandnotemsg,$rand(1,3),59)
    ECHO $chan -- Variable %note_from_to. $+ %notevaradmin1 created --
    floodcooldownnote
    MSG $chan $nick $+ , message has been added to the database with ID no %note_id $+ .
  }
}
var %varban = chatter testuser95
ON $*:TEXT:/^!note\s\w+\s/iS:#:{
  ; %randnotemsg the fix for repetative messages when you leave a message for others
  var %randnotemsg Message from $nick to $2 $+ : $3- $+ ;Note left for $2 by $nick $+ : $3- $+ ;Message left for $2 by $nick $+ : $3-
  ; %randnotemsgself the fix for repetative messages when you leave a message for yourself
  var %randnotemsgself Message left by $nick $+ : $3- $+ ;Note left by $nick $+ : $3- $+ ; $+ $nick left note: $3-
  IF ( $nick isin %bannedusers ) { autokbnote }
  IF ( $nick isin %twitchbots ) { return }
  IF ( $2 isin %twitchbots ) { return }
  IF ( $2 = $null ) { return }
  IF ( $3- = $null ) { return }
  inc %note_id
  inc %note_id. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ]
  SET %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] $nick $2
  ; set %notes_for.* variable that contains the names of everyone who has left a note for the targeted user
  SET %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] $nick
  ; set %notes_from_to.* variable that contains the message from the user to the targeted user
  IF ( $2 != $nick ) {
    SET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] $gettok(%randnotemsg,$rand(1,3),59)
    floodcooldownnote
    MSG $chan $nick $+ , your message has been left for $2 with ID no %note_id $+ .
    return
  }
  SET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ] [ $+ [ . ] ] [ $+ [ $2 ] ] $gettok(%randnotemsgself,$rand(1,3),59)
  floodcooldownnote
  MSG $chan $nick $+ , your message has been left with ID no %note_id $+ .
}

on *:JOIN:#: { postmessage }
on *:TEXT:*:#: { postmessage }

alias postmessage {
  var %notebegin %note_from_to.
  var %notebegin2 %notes_for.
  var %notebegin3 %note_info.
  var %notevar1 $server $+ . $+ $chan $+ . $+ $v1 $+ . $+ $nick
  var %notevar2 $server $+ . $+ $chan $+ . $+ $nick
  IF (%notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]) {
    VAR %x_notes 1
    WHILE ($gettok(%notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ],%x_notes,32)) {
      MSG $chan %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $v1 ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]
      UNSET %note_from_to. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $v1 ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]
      ECHO $chan -- Variable %notebegin $+ %notevar1 erased --
      INC %x_notes
      DEC %note_id. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]
    }
    UNSET %notes_for. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]
    ECHO $chan -- Variable %notebegin2 $+ %notevar2 erased --
    UNSET %note_info. [ $+ [ $server ] ] [ $+ [ . ] ] [ $+ [ $chan ] ] [ $+ [ . ] ] [ $+ [ $nick ] ]
    ECHO $chan -- Variable %notebegin3 $+ %notevar2 erased --
  }
}