Hey guys
So recently my main keyboard's left arrow key stopped working right (turned out to be spilled, gellified dr. pepper), and after opening it up and cleaning it out I need some help putting it back together right
I had to pop off a small metal object that was attached to a circuit board(?) and one of those ringed connector things (in pic below) and I'm not sure how to assemble them together correctly because I'm a big noob.

(the "small metal object" is just a strip of metal with some sort of cushioney trans yellow thing on it and holes for screws, will take pic if needed)
Where would I place these together to get it to work again?