Handle is not a valid member of tool?

Hi, I'm currently making a sword and I have a problem where Handle is not a valid member of tool when it clearly is. Is it maybe due to a Roblox update which broke it because it has worked before and I have not changed the script in anyway. Please help

Local Script:

script.Parent.Equipped:Connect(function()
local idle = script.Parent.Parent.Humanoid:LoadAnimation(script.Parent.Animations.Idle)
idle:Play()
script.Parent.Unequipped:Connect(function()
idle:Stop()
end)
end)


local UserInputService = game:GetService("UserInputService")
local Tool = script.Parent
local CanAttack = true
local Anim_Name = "Attack"
local Audio = script.Parent.Handle.Swing
local Attack_Animations = script.Parent:WaitForChild("Animations")
local Attack_Num = 1
local blade = script.Parent.SwordBlade

blade.Touched:Connect(function(hit)
	if CanAttack == false then
		game.ReplicatedStorage.Damage:FireServer(hit)
	end
end)

UserInputService.InputBegan:Connect(function(InputObject)
	if InputObject.UserInputType == Enum.UserInputType.MouseButton1 then
		local Animation = script.Parent.Parent.Humanoid:LoadAnimation(Attack_Animations[Anim_Name..Attack_Num])
		if CanAttack == true then
            CanAttack = false
			Animation:Play()
			Audio.PlaybackSpeed = math.random(0.9,1.1)
			Audio:Play()
			blade.Trail.Enabled = true
			wait(0.5)
			CanAttack = true
			blade.Trail.Enabled = false
			if Attack_Num == 1 then
				Attack_Num = Attack_Num + 1
				else if Attack_Num == 2 then
					Attack_Num = 1
				end
			end
		end
	end
end)