Weapons not working when bought from shop gui, what to do?

Okay so I've made this gui (Using a complicated video tutorial that didn't totally work) But the buying stuff works, but when you buy the weapon (As an example a sword) it won't attack, what to do? Here is the script for the weapon and other stuff:

The sword item buying thingy script:

script.Parent.MouseButton1Click:connect(function()
 local RS = game:GetService("ReplicatedStorage")
 local item =  RS:WaitForChild("Sword")
 local price = 99 -- Change Your Price Here
 local player = game.Players.LocalPlayer
 local stats = player:WaitForChild("leaderstats")
 if stats.Money.Value >= price then -- Change the Money to your Currency Name
  stats.Money.Value = stats.Money.Value - price
  local cloned = item:Clone()
  local cloned2 = item:Clone()
  cloned.Parent = player.Backpack
  cloned2.Parent = player.StarterGear
 end
end)

Leaderboard:

game.Players.ChildAdded:connect(function(player)
 local stats = Instance.new("Model",player)
 stats.Name="leaderstats"
 local money = Instance.new("IntValue",stats)
 money.Name="Money"
 money.Value=300 -- Change Your Starting Money
 player.CharacterAdded:connect(function(character)
  character:WaitForChild("Humanoid").Died:connect(function()
  local tag = character.Humanoid:FindFirstChild("creator")
   if tag ~= nil then
    if tag.Value ~= nil then
     local stats = tag.Value:WaitForChild("leaderstats")
stats["Money"].Value = stats ["Money"].Value + 5
    end
   end
  end)
 end)
end)

I also put the weapon item in ReplicatedStorage. Thanks - keketin