killfeed is not working even though i scripted correctly, i think?

Not sure what the problem is with this script for my kill feed. I had followed a tutorial on YouTube because I have never really made an advanced game, this one would be my first actual game that I want to become big. Anyways, I did exactly what the YouTuber did, and it worked perfectly well for them. However, I tested the script, and it didn't work. The script is below.

--Local Script (Yes, I have a remote event in Replicated Storage):

local event = game.ReplicatedStorage.KilledEvent

game.Players.PlayerAdded:Connect(function(plr)
	plr.CharacterAdded:Connect(function(char)
		char:WaitForChild("Humanoid").Died:Connect(function(killed)
			local killer = char.Humanoid:FindFirstChild("creator")
			if killer.Value then
				local killerName = killer.Value.Name
				event:FireAllClients(plr, killerName)
			end
		end)
	end)
end)

--Kill feed

local event = game.ReplicatedStorage.KilledEvent

event.OnClientEvent:Connect(function(plr, killerName)
	if killerName and plr.Name then
		local text = Instance.new("TextLabel")
		text.Parent = script.Parent
		text.BackgroundColor3 = (255, 255, 255)
		text.BackgroundTransparency = 1
		text.TextScaled = false
		text.TextColor3 = Color3.new(255, 255, 255)
		text.Font = Enum.Font.GothamBold
		text.Text = plr.Name.." ????? "..killerName
		wait(10) 
		text.Visible = false
	end
end)