Getting error in script 9.60 Mystic Server Mount seller script.

[Ghost Creations]

Error:
Lua Script Error: [Npc interface]
data/npc/scripts/mountseller.lua
data/npc/scripts/mountseller.lua:37: attempt to call global 'getItemsFromList' (a nil value)
stack traceback:
[C]: in function 'getItemsFromList'
data/npc/scripts/mountseller.lua:37: in main chunk
[Warning - NpcScript::NpcScript] Can not load script: data/npc/scripts/mountseller.lua

NPC:
<?xml version="1.0" encoding="UTF-8"?>
<npc name="Dominike" script="data/npc/scripts/mountseller.lua" walkinterval="2000" floorchange="0">
<health now="100" max="100"/>
<look type="129" head="0" body="114" legs="114" feet="0" addons="3" mount="376" corpse="6007"/>
</npc>

Script:
local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)
function onCreatureAppear(cid) npcHandlernCreatureAppear(cid) end
function onCreatureDisappear(cid) npcHandlernCreatureDisappear(cid) end
function onCreatureSay(cid, type, msg) npcHandlernCreatureSay(cid, type, msg) end
function onThink() npcHandlernThink() end
function AddMount(cid, message, keywords, parameters, node) --by vodka
if(not npcHandler:isFocused(cid)) then
return false
end
if (isPlayerPremiumCallback == nil or isPlayerPremiumCallback(cid) == true or parameters.premium == false) then
if(parameters.level ~= nil and getPlayerLevel(cid) < parameters.level) then
npcHandler:say('You must reach level ' .. parameters.level .. ' to buy this mount.', cid)
elseif canPlayerRideMount(cid, parameters.mountid) then
npcHandler:say('you already have this mount!', cid)
elseif not doRemoveItemsFromList(cid,parameters.items) then
npcHandler:say('Sorry You need '..getItemsFromList(parameters.items)..' to buy this mount!', cid)
else
doPlayerAddMount(cid, parameters.mountid)
npcHandler:say('Here is your mount!', cid)
npcHandler:resetNpc()
end
else
npcHandler:say('I can only allow premium players to buy this mount.', cid)
end
npcHandler:resetNpc()
return true
end
local mounts = {
{"blazebringer", items = {{5897,50}, {8694,1}}, mountid = 9, level = 10, premium = false},
{"rapid boar", items = {{5892,2}}, mountid = 10, level = 15, premium = false},
{"stampor", items = {{13300,100}, {13299,50},{13301,30}}, mountid = 11, level = 15, premium = false},
{"mounts", text = "I sell these mounts: {blazebringer},{rapid boar},{stampor}!"}
}
for i = 1, #mounts do local get = mounts if type(get.items) == "table" then
local node = keywordHandler:addKeyword({get[1]}, StdModule.say, {npcHandler = npcHandler, onlyFocus = true, text = "You want to buy the mount " .. get[1] .. " for "..getItemsFromList(get.items).." ?"})
node:addChildKeyword({"yes"}, AddMount, {items = get.items,mountid = get.mountid, level = get.level, premium = get.premium})
node:addChildKeyword({"no"}, StdModule.say, {npcHandler = npcHandler, onlyFocus = true, text = "Ok, then.", reset = true})
else keywordHandler:addKeyword({get[1]}, StdModule.say, {npcHandler = npcHandler, onlyFocus = true, text = get.text}) end end
mounts = nil npcHandler:addModule(FocusModule:new())