What the problem with my x button

So the problem is that I was given a PS5 controller, but when I turned it on, the X button didn’t work, so I couldn’t log into any account. I opened the controller and did some cleaning I found online, but even after that it still didn’t work. I even removed the rubber piece from the PS button and tried to make contact with the X button membrane, but it still didn’t work.

I know it’s not a problem with the rubber because I used the same PS button rubber and touched the circle button membrane, and on the PS5 the controller registered a back action. That’s why I’m asking, because I don’t know if it’s a circuit issue or something with the pins, and I also don’t know how to fix it. I imagine it would require soldering, and I’m not very good at that and don’t have the right tools.

Whoever can help me, I would really appreciate it.