Getting an Error When Booting

I'm still rocking a 10.6.8 on a 2006 Macbook (I know, I know) with a Core Duo processor (not the Core 2 Duo), but just recently, it started getting stuck on the boot-up screen. I get a loading bar, which I never did before, and it goes about a quarter of the way, then back to zero, a quarter of the way again, then it shuts off. Just now, I tried turning it on again, and it says, (panic(cp 0 caller ox2abf6a): Kernel trap at oxoo294d00, type 14=page fault, registers: CRO: oxooo1003b, CR2: oxob91f000, CR3: 0x00101000, CS4: 0x00000660. Before this, the only issue it was having was that sometimes when I'd close it, the trackpad and keyboard wouldn't respond upon reopening. I'd either have to tap them till they did, or try closing and opening again. I know it's really old, but I'm wondering if, based on that info, whether you could tell me what part it's likely to be so I can attempt a repair. I replaced the display a while back, but that didn't solve the trackpad's occasional non-responsiveness, although I still had to use the old cable to go into the logic board. I was thinking of trying to replace that, but I'm wondering if maybe the logic board itself has crapped out. The top case has also been replaced before, so I don’t think it’s that…