OnServerEvent printing username instead of argument?

So basically I am trying to make a gun,

if cooldown == false then
		cooldown = true
		print(hit)
		game.ReplicatedStorage.shoot:FireServer(plr, hit)
		wait(3)
		cooldown = false
		end

This will print a Vector3 Value to where I clicked

game.ReplicatedStorage.shoot.OnServerEvent:Connect(function(plr, hit)
	local part = Instance.new("Part")
	part.Parent = workspace
	print(hit)
	part.Position = Vector3.new(hit)
end)

But this only prints my username?

Im confused on why it does that, please help.