Script working fine last week. It is broken now, but why?

local player = game.Players.LocalPlayer

script.Parent["GunScript V5"].Disabled = true

script.Parent.Equipped:connect(function()
    script.Parent["GunScript V5"].Disabled = false
end)

script.Parent.Unequipped:connect(function()
    script.Parent["GunScript V5"].Disabled = true
end)

player.Character.Humanoid.Died:connect(function() -- errors here
    script.Parent["GunScript V5"].Disabled = true
end)

--This script prevents the gun from being fired when it is not equipped or if the player died.

error is: "Attempt to index field 'Character' (a nil value)"