Screen doesn't work + randomly shuts down while playing music and traking activities at the same time

My vivoactive 5 seems to have two recurrent bugs:

1st - From time to time, the screen stops turning on when I press it or click on the buttons. I always have to restart the watch so the screen works again. Although the screen doesn't turn on the buttons still work, meaning I find myself randomly starting walks when the screen is still black and I'm just trying to make the screen work again.

2nd - Whenever I play music at the same time as doing an activity the watch randomly turns off and gets stuck on the blue triangle screen, like it is trying to restart indefinitely. This happens specifically when playing music + tracking an activity. I've tried playing music and tracking activities separately and it works, it only shuts down when doing both simultaneously.

I hope someone can fix this as it is very annoying, especially the second one as it ruins my runs and workouts constantly.