disable title

Replies: 0

I do not know why when I activate this function I see the title here inside is there any function to deactivate only the title ????
https://ibb.co/D7SsqbQ

add_filter( 'the_content', function( $content ) {
  if( function_exists( 'rank_math_get_breadcrumbs' ) ) {
    $content = rank_math_get_breadcrumbs() . $content;
  }
  return $content;
});