no errors but item does not show up

variables:
  {orange} = orange stained glass pane
  {red} = red stained glass pane

options:
    mainguiname: <##ff4d00>&lᴇᴍᴘʏʀᴇᴀɴ <##ff6800>| <##ff8330>ᴇɴᴄʜᴀɴᴛᴇʀ
    guiname: <##ff4d00>&lᴇɴᴄʜᴀɴᴛᴇʀ <##ff6800>| <##ff8330>%{_itemname}%

on right click:
    if clicked block is lodestone:
        if player's held item is air:
            set {_enchanting} to a new chest inventory with 6 rows with name "{@mainguiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of {_enchanting} to anvil named "&e&l[!] &eThere is no item selected" with lore "", "&f&oHold the item", "&f&oyou want to upgrade!"
            open {_enchanting} to player
#! Pickaxe
        if player is holding any pickaxe:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Sword
        if player is holding any sword:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Axe
        if player is holding any axe:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Helmet
        if player is holding any helmet:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Chestplate
        if player is holding any chestplate:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Leggings
        if player is holding any leggings:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player
#! Boots
        if player is holding any boots:
            set {_item} to player's held item
            set {_itemname} to name of player's held item
            set {_enchanting} to a new chest inventory with 6 rows with name "{@guiname}"
            set slot 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 and 53 of {_enchanting} to {orange} named "&6"
            set slot 40 of {_enchanting} to barrier named "<##ff6800>ᴄᴀɴᴄᴇʟ"
            set slot 22 of player's current inventory to {_item} named {_itemname}
            open {_enchanting} to player

on inventory click:
  if name of event-inventory is "{@guiname}":
    if index of event-slot = 0, 1, 2, 3, 4, 5, 6 ,7, 8, 45, 46, 47, 48, 49, 50, 51, 52 or 53:
      cancel event
    else:
      if name of event-inventory is "{@guiname}":
        if index of event-slot = 40:
          cancel event
          close player's inventory