The ball object won't show up. How do i fix this?

local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
wait(1)
local Humanoid = Character.Humanoid or Character:WaitForChild("Humanoid")
local mouse = Player:GetMouse()
local ok = 0



function charge()
	if ok == 0 then
		ok = 40
		local anim = Instance.new("Animation")
		anim.AnimationId = "rbxassetid://4364880762"
		local animationtrack = Humanoid:LoadAnimation(anim)
		animationtrack:Play()
		wait(0.2)
		local ball = Instance.new("Part")
		ball.Shape = "Ball"
		ball.CFrame = Humanoid.RightArm.CFrame * CFrame.new(0,-0.9,0)
		ball.Size = Vector3.new(1, 1, 1)
		ball.Parent = game.Workspace
		ball.Material = "Neon"
		ball.BrickColor = BrickColor.new("Blue")
		ball.Transparency = 0
		ok = 3
	end
end

local UIS = game:GetService('UserInputService')
	 
	UIS.InputBegan:connect(function(key,istyping)
	  if key.KeyCode == Enum.KeyCode.Q then
	        charge()
	    end
	end)