[MOD] table expected, got nil

[olavo]

<?xml version="1.0" encoding="UTF-8"?>
<mod name="Death Portais" version="1.0" author="Olavo" contact="[email protected]" enabled="yes">
	<config name="portais_config"><![CDATA[
		config = {
			message = "Entre no teleporte em ate 2 minutos, ao passar este tempo ele desaparecera!",
			timeToRemove = 120, -- seconds
			teleportId = 1387,
			bosses = {
				["Akaoni"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1161, z = 11}, ['storage'] = {id = 0, value = -1}},
				["Merlin"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1148, z = 11}, ['storage'] = {id = 0, value = -1}},
				["Urnoghor"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1136, z = 11}, ['storage'] = {id = 0, value = -1}},
				["Logharok"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1118, z = 11}, ['storage'] = {id = 0, value = -1}},

				["Argor"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1161, z = 11}, ['storage'] = {id = 0, value = -1}},
				["Brutal energy"] ={['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1161, z = 11}, ['storage'] = {id = 0, value = -1}}, 
				["Gharkan"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1161, z = 11}, ['storage'] = {id = 0, value = -1}},
				["Khurnor"] = {['from'] = {x = 0, y = 0, z = 0}, ['to'] = { x = 948, y = 1161, z = 11}, ['storage'] = {id = 0, value = -1}}
			}
		}
		function removal(position, teleportId) -- remove teleportId?
			position.stackpos = 1
			if getThingfromPos(position).itemid == config.teleportId then
				doRemoveItem(getTileItemById(position, teleportId).uid) -- test
				--doRemoveItem(getThingfromPos(position, teleportId).uid)
			end
			return TRUE
		end
	]]></config>
	<event type="death" name="Portais" event="script"><![CDATA[
		domodlib('portais_config')

		function onDeath(cid, corpse, killer)
			registerCreatureEvent(cid, "Portais")
			local position = getCreaturePosition(cid)
	
			for name, boss in pairs(config.bosses) do
				if name == getCreatureName(cid) then
					if(getThingFromPos(boss['from'])) then
						position = boss['from']
					end
					if(boss['storage'].id ~= 0) then
						doPlayerSetStorageValue(killer, boss['storage'].id, boss['storage'].value)
					end
					teleport = doCreateTeleport(config.teleportId, boss['to'], position)
					doCreatureSay(cid, config.message, TALKTYPE_ORANGE_1)
					addEvent(removal, config.timeToRemove * 1000, position, config.teleportId)
				end
			end
			return TRUE
		end
	]]></event>
</mod>

Returned this error (config.bosses = nil?):

[25/08/2009 13:46:38] Lua Script Error: [CreatureScript Interface]
[25/08/2009 13:46:38] buffernDeath

[25/08/2009 13:46:38] [string "loadBuffer"]:7: bad argument #1 to 'pairs' (table expected, got nil)
[25/08/2009 13:46:38] stack traceback:
[25/08/2009 13:46:38] [C]: in function 'pairs'
[25/08/2009 13:46:38] [string "loadBuffer"]:7: in function <[string "loadBuffer"]:3>

whats wrong in this?