IncrementAsync not an int value?

local DataStoreService = game:GetService("DataStoreService")

local deaths = DataStoreService:GetDataStore("PlayerDeaths")


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

	local deaths = Instance.new("IntValue")
	deaths.Name = "Accidents"
	deaths.Parent = leaderstats
	
	
	player.CharacterAdded:Connect(function(char)
	    -- detect humanoid died.
		char.Humanoid.Died:Connect(function()
			print("e")
			local success, newDeath = pcall(function()
				print("ee")
				return deaths:IncrementAsync(player.UserId, 1)
				
			end)
			print(newDeath)
			if success then
				deaths.Value = newDeath-- add 1 value to values
				print(newDeath)
			end
		end)
	end)
end



game.Players.PlayerAdded:Connect(onPlayerJoin)

e and ee print the first newDeath results in "IncrementAsync is not a valid member of IntValue"