Whenever I have been playing Mario Kart 8 I get this error code. I cleaned the disc with a soft cloth and I still get the error. I Called Nintendo Support and I thought I would get a replacement disc sent, but nope.
Called back support and they told me that I will need to send the disc back to Nintendo for repairs. Now I can't play Mario Kart 8 for a few weeks ugh. All my other games have worked good.
At least the repair is free and I don't have to pay to ship to Nintendo. Let me know if other people have had this error too.