Console will not read a clean disc

I’ve had this gamecube for a while now and it’s never given me an issue. The other day, however, I picked up a copy of Super Smash Bros Melee that has issues. It will load up to certain points and then give me the “disc could not be read” message. opening and closing the tray like 15 times allows me to get to the next portion of the game where I encounter the same problem. the disc looked super clean but I had it buffed at a local game store anyway and still get the same results. I have already adjusted the laser POT (160 ohms) and still nothing. again, I can play any other game fine but Melee is incredibly difficult to get anything out of.