Why won't my game work?

I had recently gotten a 3DS XL since my last one broke. I got it and started to play it on April 3rd. I decide I would play on of my favorite games, Tomodachi Life, and for a few days it was going pretty good, until April 7th. I took out the card of Tomodachi Life to start playing Miitopia, and after a good 1 hour and 30 minutes I took it out and put in the Tomodachi card again. It still read, but when I tried to get into the game it brought up and error screen. I tried turning off and on again, and I even cleaned it with rubbing alcohol, but no matter what I did, it still brought up that error screen.

All my other games work, but not this one. Everything is clean and none of it looks broken or damaged. If I can’t do anything about it I may just buy a new one. But if anyone has any ideas on how to fix this, please tell me.