Why the value 3 is not detected ?

the pistol3 is next why ? (It's for a unlock the next item to buy)

This is a video with the bug https://www.youtube.com/watch?v=bCXXtnPLcVI

local Player = game.Players.LocalPlayer
local ReplicatedStorage = game.ReplicatedStorage


script.Parent.MouseButton1Click:Connect(function()
	if script.Parent.Parent.PetInventory.Visible == false then
		script.Parent.Parent.PetInventory.Visible = true
		
		
		local inventory = script.Parent.Parent.PetInventory.Inventory.InventoryFrame
		local plritem = Player:FindFirstChild("Items"):GetChildren()
		local itemfolder = ReplicatedStorage:FindFirstChild("Items"):GetChildren()
		for i = 1,#plritem do
			for j = 1,#itemfolder do
				if plritem[i].Name == itemfolder[j].Name then
					print(plritem[i].Name, itemfolder[j+1].Name)
					local item = inventory:FindFirstChild(itemfolder[j+1].Name)
					item.Background.Locked.Visible = false
				end
			end
		end
		
		
	else
		script.Parent.Parent.PetInventory.Visible = false
	end
end)

19:29:19.471 - Players.xDZweird.PlayerGui.Shop.PetInventoryButton.LocalScript:16: attempt to index nil with 'Name' 19:29:19.472 - Stack Begin 19:29:19.472 - Script 'Players.xDZweird.PlayerGui.Shop.PetInventoryButton.LocalScript', Line 16 19:29:19.473 - Stack End Pistol Pistol2 Pistol2 Pistol3 Pistol4 Pistol5 Pistol5 Pistol6

I don't know if this is going to work, or if this is even the problem, but here I go. Let's say you have the following table:

local players = {
	player1 = "BrodyGamer101";
	player2 = "xDZweird";
	player3 = "Aiden16026"

}

If you try to access each value as:

players[number]

It won't work. It will be nil. Instead, you have to change the table to be like:

local players = {
	"BrodyGamer101";
	"xDZweird";
	"Aiden16026"

}

Then you can do

players[number]

Like I said, I have no idea if this is even relevant, but it's a good tip to all you out there.

When you buy one item a boolvalue is create with the name of the item, it is plritem in the script. It is a folder in plr