how do I fix "Players.AM910SK.Backpack.Rasengan.Damage:12: attempt to index nil with 'Character'"?

I have a damage script inside my tool that uses body velocity to blowback anyone who gets hit by it but it keeps saying that Character is a nil value.

This is a normal script inside my tool

script:

local player = game.Players.LocalPlayer
local handle = script.Parent.Handle
local debounce = false

handle.Touched:Connect(function(hit)
    if not debounce and hit.Parent.Humanoid then
        debounce = true
        hit.Parent.Humanoid:TakeDamage(50)
        local bv = Instance.new("BodyVelocity")
        bv.Parent = hit.Parent.Humanoid
        bv.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
        bv.Velocity = player.Character.HumanoidRootPart.CFrame.lookVector * 50
        bv:Destroy()
        wait(3)
        debounce = false
    end
end)