Colocou dessa forma?

local boss = {

["fire overlord"] = {g_storage = 40064, p_storage = 60027},
["energy overlord"] = {g_storage = 40065, p_storage = 60028},
["ice overlord"] = {g_storage = 40066, p_storage = 60029},
["earth overlord"] = {g_storage = 40067, p_storage = 60030},
}




function onDeath(cid, corpse, lasthitkiller, mostdamagekiller, lasthitunjustified, mostdamageunjustified)
local pid = Player(mostdamagekiller)


local t = boss[Creature(cid):getName():lower()]
if not t then
return true
end


Player(pid):setStorageValue(t.p_storage, 1)
setGlobalStorageValue(t.g_storage, -1)


return true
end




function onKill(cid, target)
if Creature(target):getName():lower() == "lord of the elements" then
Player(cid):setStorageValue(60031, 1)
end


return true
end


function onLogin(cid)
Player(cid):registerEvent("ElementalSpheresKill")
return true
end

funcionou, obrigado.