Lua movement

[SpiderOT]

hello i get this error
sometime not all the time
and sometime i found the door closed on player and they get debug

error

[10/09/2009 00:44:25] Lua Script Error: [MoveEvents Interface] 
[10/09/2009 00:44:25] data/movements/scripts/closingdoor.lua:onStepOut

[10/09/2009 00:44:25] luaDoTransformItem(). Item not found

[10/09/2009 00:46:28] Lua Script Error: [MoveEvents Interface] 
[10/09/2009 00:46:28] data/movements/scripts/closingdoor.lua:onStepOut

[10/09/2009 00:46:28] luaDoTransformItem(). Item not found

and the script

function onStepOut(cid, item, position, fromPosition)
	local newPosition = {x = position.x, y = position.y, z = position.z}
	if(isInArray(verticalOpenDoors, item.itemid)) then
		newPosition.x = newPosition.x + 1
	else
		newPosition.y = newPosition.y + 1
	end

	doRelocate(position, newPosition)
	local tmpPos = {x = position.x, y = position.y, z = position.z, stackpos = -1}
	local tileCount = getTileThingByPos(tmpPos)

	local i = 1
	local tmpItem = {uid = 1}
	while(tmpItem.uid ~= 0 and i < tileCount) do
		tmpPos.stackpos = i
		tmpItem = getTileThingByPos(tmpPos)
		if(tmpItem.uid ~= item.uid and tmpItem.uid ~= 0 and isMoveable(tmpItem.uid)) then
			doRemoveItem(tmpItem.uid)
		else
			i = i + 1
		end
	end

	doTransformItem(item.uid, item.itemid - 1)
	return true
end

please need help fast