Why doesn't this script work properly in which you need to join a new server for it to work?

This script does work properly it gives you the weapon, but it only gives it to you when you join another new server. Any help on how to fix this? I've been wondering around with this script much in why it does that.

wait(2) 

gpid = 223931418
tools = {"Bren"}

GPS = game:GetService("GamePassService")
function respawned(char)
local player = game.Players:FindFirstChild(char.Name)
if char:FindFirstChild("Head") ~= nil then
print("It's a Player!")
if GPS:PlayerHasPass(player, gpid) then
print("Has GPID")
for i = 1,#tools do
game.Lighting:FindFirstChild(tools[i]):Clone().Parent = player.Backpack
end
else
print("No GPID")
end
end
end
game.Workspace.ChildAdded:connect(respawned)