My Dash script stops working after someone dies. How can I fix this?

I was testing this with a frend in the game, and we learned that the script works fine, until you die/reset, then you can't use the dash feature. Here's the script, could anyone tell me if I did something wrong here?

local player = script.Parent.Parent
local debounce = false
local char = player.Character or player.CharacterAdded:Wait()
local uis = game:GetService("UserInputService")
local hum = char:WaitForChild("Humanoid")
local length = .2
local anim = Instance.new("Animation")
anim.AnimationId = "rbxassetid://5100521622"
local didpress = false

local SOUN = script:WaitForChild("DashSound")

uis.InputBegan:Connect(function(input, istyping)
    if istyping then return end
    if input.KeyCode == Enum.KeyCode.E then
        if not debounce then
        if not didpress then
                    didpress = true
                    wait(.2)
                    didpress = false
               else
            debounce = true
                    local bv = Instance.new("BodyVelocity", char:WaitForChild("HumanoidRootPart"))
                    bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
                        bv.Velocity = char:WaitForChild("HumanoidRootPart").CFrame.LookVector * 85
                    local playanim = hum:LoadAnimation(anim)
                    playanim:Play()
                    SOUN:Play()
                    wait(.350)
                    bv:Destroy()
                    playanim:Stop(.8) 
            wait(.650)
            debounce = false
            end
    end
    end
end)