Help i need player pts?

I am trying to make my player pts shop work but it isnt any help?

You will have to download a certain plugin to create a shop or have to script a complicated GUI to make one. I'd rather do shop so get the roblox plugin off the blog, blog.roblox.com. And then you may have to use some of your own robux, then create the developer products that they will get to buy, and then put the ids into the place's shop. And test it then done!