Players.Player2.Backpack.Knife.Damage:11: attempt to index nil with 'TakeDamage'?

I added a feature that gives the player 1 kill every time they kill someone but it would not work

Damage script:

local gear = script.Parent
local hitbox = script.Parent.Hitbox
local damage = 50
local canDamage = script.Parent.canDamage

hitbox.Touched:Connect(function(hit)
	local hum = hit.Parent:FindFirstChildWhichIsA('Humanoid')
	
	if canDamage.Value == true then
		
		hum:TakeDamage(50)
		
		canDamage.Value = false
		
	end
end)

leaderstats script:

local dataStores game:GetService("DataStoreService"):GetDataStore("KnifeBattlesDataStore")

game.Players.PlayerAdded:Connect(function(player)

	local leaderstats = Instance.new("Folder")
	leaderstats.Name ="leaderstats"
	leaderstats.Parent = player

	local kills = Instance.new("IntValue")
	kills.Name = "Kills"
	kills.Value = 0
	kills.Parent = leaderstats

	local gems = Instance.new("IntValue")
	gems.Name = "Gems"
	gems.Value = 0
	gems.Parent = leaderstats
	
	
	--Data Stores

	local killsData, gemsData

	local succes, errormessage = pcall(function(player)
		killsData = dataStores:GetAsync("Kills-"..player.UserId)
		gemsData = dataStores:GetAsync("Gems-"..player.UserId)
	end)

	if succes then
		if killsData then
			kills.Value = killsData
			gems.Value = gemsData
		end

	end

	game.Players.PlayerRemoving:Connect(function(player)
		local success, errormessage = pcall(function()
			dataStores:SetAsync("Kills-"..player.UserId,player.leaderstats.kills.Value)
			dataStores:SetAsync("Gems-"..player.UserId,player.leaderstats.gems.Value)
			
			
player.CharacterAdded:connect(function(character)
  character:WaitForChild("Humanoid").Died:connect(function()
  local tag = character.Humanoid:FindFirstChild("creator")
   if tag ~= nil then
    if tag.Value ~= nil then
     kills.Value = kills.Value + 1 --This is the reward after the player died.
    end
   end
                    end)
                end)
            end)
		end)
	end)

Instead of

 local hum = hit.Parent:FindFirstChildWhichIsA('Humanoid')

try local hum = hit.Parent:WaitForChild("Humanoid")