hi, I encounter a problem when trying to Firing a Client, the problem was The FireClient unexpectedly Fired all clients (tried print statement to test). What is the problem of my code?

-- Received LocalScript

-- Remove the leave matchmaking button if timer is running out (The button is deleted for all users once a user joined a match)
invis.OnClientEvent:Connect(function()
	print("I got Fired (DELETE_INSTANCE_SCRIPT)")
		script.Parent.Visible = false
end)

-- Processed ServerScript

timeout.OnServerEvent:Connect(function(p, t)
local reserveCode = ts:ReserveServer(GameId)
	print("Timeout.")
	if t == "ab220AEm" then
		-- Fire the client so the button will be removed
		re2:FireClient(p)
		-- Teleportation Processing
		local plrToTeleport = {}
		for k,v in pairs(rs.a:GetChildren()) do
			table.insert(plrToTeleport, game:GetService("Players"):FindFirstChild(v.Value))
		end
		ts:TeleportToPrivateServer(GameId, reserveCode, plrToTeleport)
		table.clear(plrToTeleport)
		rs.a:FindFirstChild(tostring(p).."_Joined"):Destroy()
		wait(5)
		-- normalize after the teleportation is processed
		normal:FireAllClients()
	else
		-- if invalid key given, the player will be kicked
		p:Kick("Caught in 4K for exploiting")
	end
end)

-- LocalScript Firing the Server

ev.OnClientEvent:Connect(function()
	script.Parent.Visible = true
	-- Timer
	for i = TIME, 0, -1 do
		-- In case if user wants to cancel the matchmaking break the timer
		if TIME == CANCEL_OFFSET then
			break
		end
		script.Parent.Text = "Game Starting in " .. tostring(i)
		wait(1)
	end
	-- Return The time to 5 seconds if the user cancelled
	if TIME == CANCEL_OFFSET then
		TIME = 5
		return
	end
	script.Parent.Text = "Teleporting..."
	timeout:FireServer("ab220AEm")
end)