Błąd w kodzie

#Copyrights: mkko120
#
# Pozwala teleportować się między światami
# wymaga permisji: "compass.server"
#




on rightclick with magma cream:
  player have permission "compass.server":
    set {_gui} to a new chest inventory with 3 row with name "<red>Wybierz Serwer<reset>"
    set slot 12 of {_gui} to diamond sword named "<red>PvP"
    set slot 14 of {_gui} to diamond pickaxe named "&2Mega&aDrop"
    set slot 26 of {_gui} to barrier named "Spawn"
    open {_gui} to player

on inventory click:
  set {_world1::*} to "pvp"
  set {_world1::*} to "megadrop"
  set {_world1::*} to "spawn"
  if name of event-inventory is "<red>Wybierz Serwer<reset>":
    if index of event-slot = 12:
      cancel event
      command "/mv tp %player% spawn1"
    if index of event-slot = 14:
      cancel event
      command "/mv tp %player% spawn1"
    if index of event-slot = 26:
      cancel event
      teleport player to location(0, 60, 0, {world1::3})

Czy ktoś mi może powiedzieć/wytłumaczyć co tu mam źle, i jak to naprawić?

z góry dziękuje