Pathfinding zombie not following path?

So I start the game the zombie will not move I can move it if I walk up to it and push it but it wont moveTo as I want following the path the path shows no errors hears the script.

local model = Instance.new("Model")
model.Name = "Points"
model.Parent = game.Workspace
while true do
	for i, v in pairs(game.Players:GetPlayers()) do
		local torsop = v.Character.Torso.Position
		local zombies = game.Workspace.Zombies:GetChildren()
		for i = 1, #zombies do
			if (zombies[i].Torso.Position - torsop).magnitude < 500 then
				repeat 
					local pathfinding = game:GetService("PathfindingService")
					function vpath(path)
						model:ClearAllChildren()
						points = path:GetPointCoordinates()
						for _, point in ipairs(points) do
							local part = Instance.new("Part")
							part.FormFactor = Enum.FormFactor.Custom
							part.Size = Vector3.new(0.5,0.5,0.5)
							part.Position = point
							part.Anchored = true
							part.CanCollide = false
							part.Parent = model
						end	
					end
				local start = script.Parent.Torso.Position
				local Target = v.Character.Torso.Position
				local path = pathfinding:ComputeRawPathAsync(start, Target, 500)
				vpath(path)
				coroutine.resume(coroutine.create(function()
					while true do
						local check = points:GetChildren()
						if #check > 0 then
							for _, poi in ipairs(points) do
								script.Parent.Humanoid:MoveTo(poi)
							end	
						end
					wait(.1)
					end
				end))
				if path.Status == Enum.PathStatus.FailStartNotEmpty or path.Status == Enum.PathStatus.FailFinishNotEmpty then
					print("Compute failed")
					return {}
				end
				wait()
				until (start - Target).magnitude < 3 or v.Character.Humanoid.Health == 0
			else
				print("Not Close Enough!")
			end 
		end
	end
wait(.1)
end

Uh, It seems to me you overthought your NPC. IT looks a bit overcomplicated and unecessary made than it should have been. And also had to many loops... inside loops..