Why is this not working?

So for some reason when you press a button the camera DOES go into first person. So I made it when you die it goes back into third person mode, but it doesn't work?

local deploy = script.Parent
local pgui = gui.Parent
local player = pgui.Parent



deploy.MouseButton1Down:connect(function()
		player.CameraMode = Enum.CameraMode.LockFirstPerson
    end
end)


function Death()
	if game.Players.LocalPlayer:FindFirstChild("Humanoid").Health <= 0 then
		player.CameraMode = Enum.CameraMode.Classic
	end
end

So you see that the deploy button does work when you press the camera but when you have < or = to 0 health then it doesn't work?

The Player doesn't have a humanoid.

player = game.Players.LocalPlayer
character = player.CharacterAdded:wait()

character:WaitForChild("Humanoid").Died:connect(function()
	player.CameraMode = "Classic"
end)