Need help with my animation not stopping, Anyone able to help?

In my tool I've got a local script which runs an animation when holding the tool and the key is pressed. In the tool there is the Animation folder with the animations and there is the handle and local script. The Problem I have is when I press the key the animation plays but when I click the key again it doesn't stop playing.

Here is my script

local player = script.Parent.Parent.Parent --Gets the player if this is a regular tool in starterpack
local character = player.Character or player.CharacterAdded:Wait()
local tool = script.Parent
local mouse = player:GetMouse()
local UserInputService = game:GetService("UserInputService")

-- Bools --
local toolon = false
local isblocking = false

-- Animations --
local Block = script.Parent.Animations.Block
local animationTrack

tool.Equipped:Connect(function()
	toolon = true
end)

tool.Unequipped:Connect(function()
	toolon = false
end)

UserInputService.InputBegan:connect(function(i,g)
	if i.UserInputType == Enum.UserInputType.Keyboard then
		if i.KeyCode == Enum.KeyCode.E and toolon == true and isblocking == false then
			animationTrack = character:WaitForChild("Humanoid"):LoadAnimation(Block)
			animationTrack:Play()
			print("Block Is On")
			isblocking = true
		end
	end
end)

UserInputService.InputBegan:connect(function(i,g)
	if i.UserInputType == Enum.UserInputType.Keyboard then
		if i.KeyCode == Enum.KeyCode.E and toolon == true and isblocking == true then
			animationTrack:Stop()
			print("Block Is Off")
			isblocking = false
		end
	end
end)

UPDATE: I've edited the code and changed it but it still doesn't work, Here is the new gif https://gyazo.com/985aef884e981d7318ce9fbd149f5757 Here is the new Rbxl https://mega.nz/file/nNxRTZRB#N_XZwyc8_QxjP0BQZdjCxdjxI6a_sPOCHEz_7JViynU

It's generally better practice to use UserInputService but what I'd suggest is separate the if statements instead of using elseif. Usually when I have a problem with elseif, I solve it by making them two separate if statements.

Edit: You never stopped the animation when the tool was unequipped so I'm pretty sure that's a result.