How to secure remote events from exploiters

[CoolDestroyer89 (cool)]

Hello. I am trying to make it so that if the event is fired twice within one minute, it kicks the player.

It doesn’t work, do you know what the issue is?

[bytesleuth]

local PlayerLastRecievedTimeMap = {}

game.ReplicatedStorage.Quests.Hundred.OnServerEvent:Connect(function(player)
	if PlayerLastRecievedTimeMap[player] and (os.time() - PlayerLastRecievedTimeMap[player]) < 5 then
		player:Kick("Quest completed too fast")
	else
		PlayerLastRecievedTimeMap[player] = os.time()
		player.leaderstats.FairyDust.Value += 100
	end
end)