YAMAHA keyboard keeps turning off after about a minute when I turn it on? Help?

I got this key board for Christmas and it’s been fine until today. Accidentally, I hit it with my leg and it fell off the stand (not a high fall, about half a meter maybe), and now whenever I turn it on, it works for about a minute at first and then turns itself off. If I try turn it back on, it flicks on for about a second and it’s gone again. Please help anyone??

?2019-01-12T02:40:55Z

You driopped it and broke it. Period. Into the shop. Or into the trash.