Random crashes

I was just playing my Minecraft world normally, but I needed to save and quit the game because It was night in the game. Once I got to the load in screen for the saving the game suddenly crashed and the normal Nintendo pop up accrued, "A error has accrued".

I decided to load up my world again, and everything was fine until about 15-20 minutes in. I slept in a row of beds with a few villagers in them and then the game crashed again displaying the same Nintendo crash message 

Thanks for your time hope you can fix this soon.