Page builder doesn't change home page and Adsense code doesn't load

Hello,
I had an existing site, so when I installed the theme, the home page, which was full of posts, is now pretty much blank – some things in the side bar only.

So I loaded demo content, but home page is still blank.

I edited home page to page builder and created a Home Block Style 1 container. But home page is still blank.

Next issue: I added Adsense code, but there are two <script> tags – do I remove both of them?
<script async src=”//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js”></script>
<script>
(adsbygoogle = window.adsbygoogle || []).push({
google_ad_client: “ca-pub-1111111111111”,
enable_page_level_ads: true
});
</script>

Next, when the documentation says add Adsense code in ad banners widget, which box does it go in – the title box? the alt title box? the link box? the image box? I put it in the link box, but the gray ball just spins and spins and nothing happens.

Thanks!