Tween Service doesn't work, no error

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#1

Hello, i’m making a system for a platform go down but I have one problem.
When the platform go to the floor 21, the tween service doesn’t work for the line 75. The script:

local TweenService = game:GetService("TweenService")

local foodFolder = workspace:WaitForChild("FoodSystem")
local platformFolder = foodFolder:WaitForChild("Platform")
local goalsFolder = foodFolder:WaitForChild("GoalPlatform")

local floor = 0

local touchDead = false

local oldObjects = foodFolder.Elements:Clone()
oldObjects.Parent = foodFolder
oldObjects.Name = "OldElements"
for key, objects in pairs(oldObjects:GetChildren()) do
	if objects:IsA("BasePart") then
		objects.Transparency = 1
		objects.Anchored = false
		for key, prox in pairs(objects:GetDescendants()) do
			if prox:IsA("ProximityPrompt") then 
				prox:Destroy()
			elseif prox:IsA("Script") then
				prox:Destroy()
			elseif prox:IsA("Sound") then
				prox:Destroy()
			end
		end
	end
end

platformFolder.Platform.Touched:Connect(function(hit)
	if touchDead == false then return end
	local checkHum = hit.Parent:FindFirstChild("Humanoid")
	if checkHum then
		checkHum:TakeDamage(math.huge)
	end
end)


while wait(5.2) do
	touchDead = false
	floor += 1
	print(floor)
	if floor == 1 then
		game.ReplicatedStorage.FoodSystem.RegenFood:Fire()
	end
	if floor > 33 then
		floor = 0
	end
			
	if floor == 0 then
		touchDead = true
		local killPartsDetect = platformFolder.Platform:GetTouchingParts()
		for key, objects in pairs(killPartsDetect) do
			local check = oldObjects.Parent:FindFirstChild("Humanoid")
			if check then
				check:TakeDamage(math.huge)
			end
		end
		
		TweenService:Create(platformFolder.Platform, TweenInfo.new(5), {Position = goalsFolder.Goal0.Position}):Play()
		for key, realObjects in pairs(foodFolder.Elements:GetChildren()) do
			if realObjects:IsA("BasePart") then
				local check = oldObjects:FindFirstChild(realObjects.Name)
				if check then
					TweenService:Create(realObjects, TweenInfo.new(5), {Position = check.Position}):Play()
				else
					print("error, object can't be find")
				end
			end
		end
	else
		local actual = "Goal"..floor
		for key, objects in pairs(foodFolder.Elements:GetChildren()) do
			print("checked")
			TweenService:Create(objects, TweenInfo.new(5), {Position = objects.Position - Vector3.new(0,20,0)}):Play() -- line 75
		end
		TweenService:Create(platformFolder.Platform, TweenInfo.new(5), {Position = goalsFolder[actual].Position}):Play()
	end
end