Many reports have been coming in suggesting that some users are suffering from a recurring crash issue across several different games.
The error, as you can see above suggests the user to power on and off the system, which has fixed the issue for some folks. Others had to go to a further extent, reformatting their SD cards to FAT-32 format and the unlucky few, had to return their console to the retailer for replacement.
The cause of the issue is still unknown but we can hope to hear something from Nintendo soon enough.