How to fix the error, after transferring to a hosting, scroll up?

Question

JavaScript

The situation is like this. The situation is like this. The situation is like this.

Answer 1

it works for me on both links (are we talking about the "up" button from the bottom right?), but the error
Cannot read property 'scrollIntoView' of null is written to the console

const blockID = anchor.getAttribute('href').substr(1)   // вот этого нет?
    document.getElementById(blockID).scrollIntoView({