Apple Watch Broke for NO REASON!

My Apple Watch series 5 stopped working today for no reason! I turned it off to with 50% battery left and now it’s just dead and won’t turn on. The most it does is flick the Apple logo on and then instantly shut off t a black screen. It does this under 2 circumstances: when I hold the side button and the crown button as well as when I put it on the charger. Nothing past this.

Advice would be appreciated!

***SEE PHOTO ATTACHED, AGAIN, NOTHING PAST THIS STAGE***