Pump action shotgun not pumping?

My pump action shotgun doesn't pump, even though I shot the gun. Why isn't it working? The only error I receive is in the event handler saying it's unable to cast value to object. Any ideas?

local Tool = script.Parent
local Handle = Tool:WaitForChild("Handle")
local Configs = Tool:WaitForChild("Settings")
local Bullets = Configs:WaitForChild("Bullets")
local MaxBullets = Configs:WaitForChild("MaxBullets")
local CoolDown = Configs:WaitForChild("CoolDown")
local Hold = Tool:WaitForChild("Hold")
local ReloadGunAnim = Tool:WaitForChild("Reload")
local PumpAnim = Tool:WaitForChild("Pump")
local PlayAnim = game.ReplicatedStorage:WaitForChild("PlayAnimation")
local StopAnim = game.ReplicatedStorage:WaitForChild("StopAnimation")
local Fire = Handle:WaitForChild("Shoot")
local Reload = Handle:WaitForChild("Reload")
local PumpSound = Handle:WaitForChild("Pump")
local Character = game:GetService("Players").LocalPlayer.Character
local Debounce = true
local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local Reloading = false
local Equipped = false

Tool.Equipped:Connect(function()
	PlayAnim:FireServer(Hold)
	Equipped = true
end)

Tool.Unequipped:Connect(function()
	StopAnim:FireServer()
	Equipped = false
end)

Tool.Activated:Connect(function()
	if Debounce == true then
		Shoot()
		Debounce = false
		wait(CoolDown.Value)
		Debounce = true
	end
end)

function Shoot()
	if Bullets.Value > 0 then
		for i = 10,0,-1 do
			local ray =  Ray.new(Tool.Handle.CFrame.p, (Mouse.Hit.p - Tool.Handle.CFrame.p + Vector3.new(math.random(-2,2), math.random(-2,2), 0)).Unit * 1000)
			local part, position = workspace:FindPartOnRay(ray, Player.Character, false, true)
			local beam = Instance.new("Part", workspace)
			beam.BrickColor = BrickColor.new("Medium stone grey")
			beam.Material = "Metal"
			beam.Transparency = 0.5
			beam.Anchored = true
			beam.Locked = true
   			beam.CanCollide = false
			beam.Name = "Bullet"
			local distance = (Tool.Handle.CFrame.p - position).magnitude
			beam.Size = Vector3.new(0.3, 0.3, distance)
			beam.CFrame = CFrame.new(Tool.Handle.CFrame.p, position) * CFrame.new(0, 0, -distance / 2)
			game:GetService("Debris"):AddItem(beam, 0.1)
			Fire:Play()
			Pump()
			if part then
				local humanoid = part.Parent:FindFirstChild("Humanoid")	

				if not humanoid then
					humanoid = part.Parent.Parent:FindFirstChild("Humanoid")
				end

			if humanoid then
				humanoid:TakeDamage(80)
			end
		end
	end	
	elseif Bullets.Value <= 0 then
	ReloadGun()
	Debounce = false
	end
end

function Pump()
	PlayAnim:FireServer(Pump)
	PumpSound:Play()
	Bullets.Value = Bullets.Value - 1
	wait(2)
	PlayAnim:FireServer(Hold)
end

function ReloadGun()
	if Reloading == false and Equipped == true then
		Reloading = true
		PlayAnim:FireServer(ReloadGunAnim)
		Reload:Play()
		wait(1.4)
		Bullets.Value = MaxBullets.Value
		PlayAnim:FireServer(Hold)
		Reloading = false	
	end
end

function onKeyPress(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.R then
		ReloadGun()
	end
end
 
game:GetService("UserInputService").InputBegan:connect(onKeyPress)

The script stops executing when it stumbles upon an error. If you would say at what line do you get this error I'd tell you what to do, but you have many lines of code so I can't.