Arduino PS2 controller

Hello, I am trying to use a PS2 wireless controller with my UNO with Bill Porter's library, but I always get the Unknown Controller issue, while I have everything wired correctly. I have also tried it with 1st party, wired PS2 controllers, with no luck. Does anyone else have this problem/ a solution to it?
Any help is much appreciated.

No one?

No not with the scant information you gave.
My question would be what is Bill Porter's library? Can you post a link to it please.

What other stuff is connected to the Arduino and how is it connected, that means a schematic.

I did ask Santa for a crystal ball but he said I had not been good enough so sorry you are going to have to explain a lot more about your project.