Aqua_DuckYT

so I'm trying to make it where you can't dupe certain named items and certain named items in shulkers but I'm having trouble figuring it our command /dupe: cooldown: 2 minutes cooldown message: &7You last duplicated an item &2%elapsed time% &7ago, you may dupe again in &2%remaining time% trigger: give player player's held item if player's held item is not air: if player's held item is not nether star: if player's held item is not a shulker box: play sound "ENTITY_PLAYER_LEVELUP" or "BLOCK_RESPAWN_ANCHOR_CHARGE" to player #anti air duper if player's held item is air: cancel cooldown play sound "ENTITY_BAT_DEATH" or "ENTITY_ENDERMAN_HURT" or "BLOCK_RESPAWN_ANCHOR_DEPLETE" with volume 6.5 to player message "&cYou need to hold an item" to player #anti heart duper if player's held item is nether star: cancel cooldown play sound "ENTITY_BAT_DEATH" or "ENTITY_ENDERMAN_HURT" or "BLOCK_RESPAWN_ANCHOR_DEPLETE" with volume 6.5 to player message "&cYou can't dupe &4Hearts" remove player's held item from player's inventory #shulker anti duper if player's held item is a shulker box: cancel cooldown message "&cYou can't dupe shulkers" loop 12 times: remove shulker box from player's inventory play sound "ENTITY_BAT_DEATH" or "ENTITY_ENDERMAN_HURT" or "BLOCK_RESPAWN_ANCHOR_DEPLETE" with volume 6.5 to player