Custom flight path problem.

[DaynNight]

Hi there I recently decided to make some custom flight path's since a teleporter npc is used in amost every private server. So far I have this:

local GetDisplay = 17699
local NPCID = 210000
 
function Flight_Master_OnGossipTalk(pUnit, event, player, pMisc)
pUnit:GossipCreateMenu(50, player, 0)
pUnit:GossipMenuAddItem(9, "Get me to the excavation site!", 1, 0)
pUnit:GossipMenuAddItem(9, "Leave.", 2, 0)
pUnit:GossipSendMenu(player)
end
 
function Flight_Master_OnGossipSelect(pUnit, event, player, id, intid, code, pMisc)
if (intid == intid) then
		CustomFlightPath = LuaTaxi:CreateTaxi()
		CustomFlightPath:AddPathNode(MapID, X, Y, Z)
                CustomFlightPath:AddPathNode(603, -0.916, 331.3, 464.8)
                CustomFlightPath:AddPathNode(603, 32.37, 234.0, 481.6)
                CustomFlightPath:AddPathNode(603, 88.66, 135.0, 487.5)
                CustomFlightPath:AddPathNode(603, 142.8, 57.08, 440.4)
				CustomFlightPath:AddPathNode(603, 374.5, -5.453, 442.3)
				CustomFlightPath:AddPathNode(603, 567.3, -9.881, 435.9)
				CustomFlightPath:AddPathNode(603, 585.8, 157.4, 395.9)
				CustomFlightPath:AddPathNode(603, 621.7, 255.4, 360.8)
		player:StartTaxi(CustomFlightPath, GetDisplay)
		player:GossipComplete()
end
end
 
if (intid == 2) then
player:GossipComplete()
end
 
RegisterUnitGossipEvent(NPCID, 1, "Flight_Master_OnGossipTalk")
RegisterUnitGossipEvent(NPCID, 2, "Flight_Master_OnGossipSelect")

Everytime I click on the npc, -> "Get me to the excavation site!" it will show in ArcEmu-world:

scripts\CampToOtherSideFlightPath.lua:14: calling 'AddPathNode' on bad self (number expected, got nil)

Any suggestions how I can fix this? Thanks alot in advance.

[stoneharry]

Here, read my comment also:

local GetDisplay = 17699
local NPCID = 210000

function Flight_Master_OnGossipTalk(pUnit, event, player, pMisc)
	pUnit:GossipCreateMenu(50, player, 0)
	pUnit:GossipMenuAddItem(9, "Get me to the excavation site!", 1, 0)
	pUnit:GossipMenuAddItem(9, "Leave.", 2, 0)
	pUnit:GossipSendMenu(player)
end

function Flight_Master_OnGossipSelect(pUnit, event, player, id, intid, code, pMisc)
	if (intid == 1) then
		local CustomFlightPath = LuaTaxi:CreateTaxi()
		--CustomFlightPath:AddPathNode(MapID, X, Y, Z) -- This line had no numbers, thus the error
		--   was telling you that a number was expected, but no value was got (it assumed those were
		--   variables with no value).
		CustomFlightPath:AddPathNode(603, -0.916, 331.3, 464.8)
		CustomFlightPath:AddPathNode(603, 32.37, 234.0, 481.6)
		CustomFlightPath:AddPathNode(603, 88.66, 135.0, 487.5)
		CustomFlightPath:AddPathNode(603, 142.8, 57.08, 440.4)
		CustomFlightPath:AddPathNode(603, 374.5, -5.453, 442.3)
		CustomFlightPath:AddPathNode(603, 567.3, -9.881, 435.9)
		CustomFlightPath:AddPathNode(603, 585.8, 157.4, 395.9)
		CustomFlightPath:AddPathNode(603, 621.7, 255.4, 360.8)
		player:StartTaxi(CustomFlightPath, GetDisplay)
	end
	player:GossipComplete()
end

RegisterUnitGossipEvent(NPCID, 1, "Flight_Master_OnGossipTalk")
RegisterUnitGossipEvent(NPCID, 2, "Flight_Master_OnGossipSelect")

[DaynNight]

Many many thanks stoneharry +rep