Table attempt to call a nil value?

I'm working on a car value check script and I don't want to use too many if statements so I'm trying to use functions in tables. My problem is on line 29:

local PlayerGui = game.Players.LocalPlayer:WaitForChild("PlayerGui")

function PlayerAdded(player)
	local leaderstats = player:WaitForChild("leaderstats")
	local String = leaderstats:WaitForChild("items").Value
	local Table = String:split(" ")
	
	local function keys(tbl)
		local tblKeys = {}

		for k, _ in pairs(tbl) do
			tblKeys[#tblKeys + 1] = k
		end

		return tblKeys
	end
	
	local Cars = {
		["ATVTrue"] = function()
			print("you have ATV")
		end,
		["TruckTrue"] = function()
			print("you have Truck")
		end
	}
	
	for count = 1, #keys(Cars) do
		if Table[count] == keys(Cars)[count] then
			Cars[count]() --Problem
		end
	end

	--[[
	PlayerGui.CarSpawner.ScrollingFrame.Truck.Purchase.Visible = false
	PlayerGui.CarSpawner.ScrollingFrame.Truck["Padding(pur)"].Visible = false
	--]]
end


game.Players.PlayerAdded:Connect(PlayerAdded)
for i,v in next,game.Players:GetPlayers() do
	PlayerAdded(v)
end

I get this error message:

ReplicatedFirst.Gui:29: attempt to call a nil value 

How can I get the functions to work and how is the value nil?