LocalScript in sword tool breaking after player's death/reset?

I am currently working on a game that includes a sword script. I made a localscript for the actual mechanisms of the tool. Here's my localscript.

local Cooldown = true
local RandomPos = math.random(0,1)
local Player = game.Players.LocalPlayer
local Char = Player.Character or Player.CharacterAdded:wait()
local Hum = Char:WaitForChild('Humanoid')
local Anim = Hum:LoadAnimation(script.Parent.Animation)
local leaderstats = Player:WaitForChild("leaderstats")
    script.Parent.Activated:Connect(function()
        if Cooldown == true then
            Cooldown = false
            script.Parent.Handle.sword_swing1:Play()
            leaderstats.Yen.Value = leaderstats.Yen.Value + script.Parent.Interval.Value
            local AddCashAlert = Player.PlayerGui.CashRecievedGui.Frame.TextLabel
            AddCashAlert.Text = "+"..script.Parent.Interval.Value
            Anim:Play()
            AddCashAlert.TextTransparency = 0
            script.Parent.Handle.Trail.Enabled = true
            for i = 0,1,.1 do
                AddCashAlert.TextTransparency = i
                wait()
            end
            wait(.7)
            Cooldown = true
            script.Parent.Handle.Trail.Enabled = false
        end
    end)
    script.Parent.Unequipped:Connect(function()
        Anim:Stop()
        script.Parent.Handle.PutIn:Play()
    end)
    script.Parent.Equipped:Connect(function()
        script.Parent.Handle.PutOut:Play()
    end)

But however, when the player dies from an NPC or dies from reseting, the script doesn't work anymore. No animations, no trails, nothing. Could anyone help and give me a thorough explaination for this? Thanks.

P.S, Sorry for the formatting. I don't know how to fix that issue, so if you know the answer, please comment on this post.