?Every time when ai is clone its dont work

Every time when ai clone in workspace it broke. If ai already in workspace then no broken

ai script

local PathfindingService = game:GetService("PathfindingService")
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local path = PathfindingService:CreatePath({
	AgentCanJump = false
})

local npc = script.Parent
local humanoid = npc.Humanoid

local TEST_DESTINATION = game.Workspace.A
local Reset = game.Workspace.AA
local Dead = game.Workspace.exit2

local waypoints
local nextWaypointIndex
local reachedConnection
local blockedConnection
local c

local function followPath(destination)
	-- Compute the path
	local success, errorMessage = pcall(function()
		path:ComputeAsync(npc.HumanoidRootPart.Position, destination.Position)
		wait(3)
		path:ComputeAsync(npc.HumanoidRootPart.Position, destination.Position)
	end)

	if success and path.Status == Enum.PathStatus.Success then
		-- Get the path waypoints
		waypoints = path:GetWaypoints()

		-- Detect if path becomes blocked
		blockedConnection = path.Blocked:Connect(function(blockedWaypointIndex)
			-- Check if the obstacle is further down the path
			if blockedWaypointIndex >= nextWaypointIndex then
				-- Stop detecting path blockage until path is re-computed
				blockedConnection:Disconnect()
				-- Call function to re-compute new path
				followPath(destination)
			end
		end)

		-- Detect when movement to next waypoint is complete
		if not reachedConnection then
			reachedConnection = humanoid.MoveToFinished:Connect(function(reached)
				if reached and nextWaypointIndex < #waypoints then
					-- Increase waypoint index and move to next waypoint
					nextWaypointIndex += 1
					humanoid:MoveTo(waypoints[nextWaypointIndex].Position)
				else
					reachedConnection:Disconnect()
					blockedConnection:Disconnect()
				end
			end)
		end

		-- Initially move to second waypoint (first waypoint is path start; skip it)
		nextWaypointIndex = 2
		humanoid:MoveTo(waypoints[nextWaypointIndex].Position)
	else
		warn("Path not computed!", errorMessage)
	end
end


followPath(TEST_DESTINATION)

c = false
npc.HumanoidRootPart.ProximityPrompt.Triggered:Connect(function()
	c = true
	local a = math.random(5,15)
	game.ReplicatedStorage.stats.bank.Value = game.ReplicatedStorage.stats.bank.Value + a
	while wait(0.03) do
	humanoid.WalkSpeed = 16
	followPath(Reset)
end
end)

while wait() do
if c == false then
	wait(60)
		followPath(Dead)
	else 
		if c == true then
	break
	end
	end	
end

clone script

main = game.ReplicatedStorage.NPC
while wait(20) do
	    clone = main:Clone()
		clone.Parent = game.Workspace
		clone:SetPrimaryPartCFrame(CFrame.new(-9.858, 6, -11.149))
	end

Try changing 'main' of the clone script to this:

main = game:GetService("ReplicatedStorage").NPC