How to fix issue on WordPress with H1?

Question

WordPress

Site on WordPress. How to fix the problem?

Answer 1

There are obviously several options here.
1. A theme that adds multiple h1s. By the way, this is not an error if the theme is written in HTML5, where article tags are used. But in order not to bother, because many of these checkers start yelling at several h1s on the page, it is better to take and put only one h1. If you have a theme that puts h1 everywhere, then you should change the theme.
2. You have added several h1's on the page in the post editor. In this case, you yourself need to manually change all occurrences of h1 to h2, h3, etc.