Filtering Enabled Not Working Help?

I'm just going to use a simple script my others are not working but I thought of using this

Script that creates the value

game.Players.PlayerAdded:connect(function(plr)
	local leaderstats = Instance.new("IntValue")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = plr
	local BD = Instance.new("IntValue")
	BD.Parent = leaderstats
	BD.Name = "Blocks Destroyed"
	BD.Value = 0
end)

Script that Fires the Server This is a script located in game.Workspace as a part.

local hitpoints = 5
script.Parent.Touched:connect(function(hit)
	local c = hit.Parent
	print(c)
	local check = game.Players:FindFirstChild(c.Name)
	if check then
		local h = c:FindFirstChild("Humanoid")
		if h then
			hitpoints = hitpoints - 1
			h:TakeDamage(0.1)
			local ex = Instance.new("Explosion",script.Parent)
			ex.BlastPressure = 0
			ex.BlastRadius = 0
			ex.Position = script.Parent.Position
			if hitpoints <= 0 then
			script.Parent:Destroy()
			local event = game.ReplicatedStorage.Events.Leaderboard.Blocks.Blocksd
			event:FireServer()
			end
		end
	elseif hit.Parent.Name == "Bullet" then
		hitpoints = hitpoints - 1
		if hitpoints <= 0 then
			script.Parent:Destroy()
		end
	end
end)

This is the script that listens for it

script.Blocksd.OnServerEvent:connect(function(plr)
	local v = plr:FindFirstChild("leaderstats"):FindFirstChild("Blocks Destroyed")
	v.Value = v.Value + 1
end)

I received an error eventually saying FireServer can only be called from the client Help Please?

Only LocalScript s can call :FireServer(). You won't need to do anything special when it comes to the server if you're using a Script. The only time you need to do :FireServer() is when you are trying to get a LocalScript to change something that would need to be seen by everyone in the game, essentially anything having to do with the server.