Pathfinding zombie

Help and Feedback Scripting Support
#1

At the moment I’m working on making a following script for a zombie using pathfinding. Every time I run this script I get the same error, does anyone know how to fix this or maybe know a better way to make a follow script.

the error:

 Workspace.ActiveZombies.Zombie.FollowScript:31: attempt to index nil with number

server script:

local PathfindingService = game:GetService("PathfindingService")

local path = PathfindingService:CreatePath()

local HumanoidRootPart = script.Parent:FindFirstChild("HumanoidRootPart")
local Humanoid = script.Parent:FindFirstChild("Humanoid")

while true do
	local found
	local last = math.huge
	local waypoints
	
	for _,player in pairs(game.Players:GetPlayers()) do
		local distance = player:DistanceFromCharacter(HumanoidRootPart.Position)
		if distance < last then
			found = player
			last = distance
		end
	end
	
	print(found)
	
	local success, errorMessage = pcall(function()
		path:ComputeAsync(HumanoidRootPart.Position, game.Workspace[found]:FindFirstChild("HumanoidRootPart").Position)
	end)
	
	if success and path.Status == Enum.PathStatus.Success then
		waypoints = path:GetWaypoints()
	end
	
	Humanoid:MoveTo(waypoints[2].Position)

	if waypoints[2].Action == Enum.PathWaypointAction.Jump then
		Humanoid.Jump = true
	end
	
	Humanoid.MoveToFinished:Wait()
end
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