Power button on Apple Watch series 6 not working properly

Hi,

so the power button on my apple watch series 6 works only when I am turning on the apple watch. It does not respond to anything else - powering off, or double click for apple pay, or one click to cancel apps. It just simply does not work for those things. It only works when the Apple Watch is off and I need to turn it on by pressing the power button.

It is updated, i tried the water trick, I tried cleaning around the power button, nothing is working..