Nintendo Wii won't read discs

I already cleaned the laser lens with isopropyl. I have checked the games on my Wii U, and they work fine. The discs are not dirty or damaged.

I've never seen something like this. The Wii is able to recognize there's a disc in it. It even knows what game it is, sometimes playing the title screen. But once it's time to actually go into the menus and start playing, the error shows up. I cleaned the lens, tried several games, nothing works. Any advice would be greatly appreciated!