PS5 Power Supply Burns

I just recently bought a PS5 that was broken. I noticed that it seemed to get no power so I opened it up and discovered that the PSU is only putting out 9 volts, I thought that maybe cockroachs had gotten inside of it and shorted it out (I noticed them when I first opened it up, seemed to be cleaned well). When I opened it I saw two areas where the back of the PCB seemed to be burned, all of the components on the front seem to be fine. I was wondering if this is fixable and how I could fix it if it is possible. Yes, I understand the risks and I am willing to take them, I understand what to do to be safe in this power supply. Thank you.