No lazyblock is displayed in front. But shown in comments.

I created my simple theme. Everything works. But not work lazy blocks. In front lazyblocks not visible and in comments i see this
<!-- wp:lazyblock/section-rev {"blockId":"ZF3VIN","blockUniqueClass":"lazyblock-section-rev-ZF3VIN"} /-->
What am I doing wrong?

The content shows that:

<?php
		if ( have_posts() ){
			while ( have_posts() ){
				the_post();
	

				echo get_the_content();
			}
		}
		
		else{
			echo ' <p>Записей нет...</p>';
		}
		?>