I have made your recommendation and error 3 has disappeared but error 1 and 2 continue

Regarding error 1: When all the variations of a product are out of stock, the product should have the ‘Out of Stock’ label and the add to cart button should disappear or be disabled

Regarding error 2, it is clearly an error of the Woodmart Theme, when it comes to a YouTube link it does not work (But if I activate the automatic reproduction it does work)