Lua destroy field rune

[Elexonic]

someone can help me with my destroy field rune does not work if you give him to the ground clicl be nothing .. sends a console error item not found.

UNREMOVABLE_FIELDS = {1497, 1498, 1499, 1505, 1506, 1507, 1508, 7465, 7466, 7467, 7468, 7469, 7470, 7471, 7472, 7473, 11094, 11095}
 
local function doRemoveField(cid, pos)
	local field = getTileItemByType(pos, ITEM_TYPE_MAGICFIELD)
	if(not isInArray(UNREMOVABLE_FIELDS, field.itemid)) then
		doRemoveItem(field.uid)
		doSendMagicEffect(pos, CONST_ME_POFF)
		return true
	end
 
	doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTPOSSIBLE)
	doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
	return false
end
 
function onCastSpell(cid, var)
	local pos = variantToPosition(var)
	if(pos.x == CONTAINER_POSITION) then
		pos = getThingPos(cid)
	end
 
	if(pos.x ~= 0 and pos.y ~= 0) then
		return doRemoveField(cid, pos)
	end
 
	doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTPOSSIBLE)
	doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
	return false
end

 

[Protegy]

local function doRemoveField(cid, pos)
	local field = getTileItemByType(pos, ITEM_TYPE_MAGICFIELD)
	if(field.itemid ~=0) then
		doRemoveItem(field.uid)
		doSendMagicEffect(pos, CONST_ME_POFF)
		return true
	end

	doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTPOSSIBLE)
	doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
	return false
end

function onCastSpell(cid, var)
	local pos = variantToPosition(var)
	if(pos.x == CONTAINER_POSITION) then
		pos = getThingPos(cid)
	end

	if(pos.x ~= 0 and pos.y ~= 0) then
		return doRemoveField(cid, pos)
	end

	doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTPOSSIBLE)
	doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
	return false
end

If i helped please Rep++ me.

 

[Elexonic]

and solved it before: P
also thank you very much
rep++ xD
can closed..