Can someone help with my CAS script?

This is in a local script in a tool. It uses context action service to call a function when you press R, it clones a part from server storage and plays an animation and it doesn't work at all. The output says something is wrong with line 19.

Edit:Fixed errors and it still won't work.

--Normal variable setup
local player = game.Players.LocalPlayer
local char = player.Character
local debounce = false

--Setting up the animation 
local animation = Instance.new("Animation")
animation.Parent = script.Parent
animation.AnimationId = "http://www.roblox.com/Asset?ID=21488069"
local animTrack = char.Humanoid:LoadAnimation(animation)
--Context Action Service
local CAS = game:GetService("ContextActionService")

--Actual function I want to happen
function firewall()
if debounce then return end
local CF = game.ServerStorage.Wall:Clone()
CF.Parent = script.Parent
CF.MainPart.Position = char.Torso.Position + Vector3.new(5,0,0)
CF.MainPart.Rotation = char.Torso.Rotation
animTrack:Play()
debounce = true
wait(5)
debounce = false
end


script.Parent.Equipped:connect(function()
CAS:BindActionToInputTypes("wall", firewall, false, "r") 
end)

script.Parent.Unequipped:connect(function()
CAS:UnbindAction("wall")
end)