ava_before_content hook does not work

function wpb_widgets_init_ad_f1() {
 
    register_sidebar( array(
        'name'          => 'banner_before_content',
        'id'            => 'after_header_ad_f1',
        'before_widget' => '<div class="after_header_ad">',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="chw-title">',
        'after_title'   => '</h2>',
    ) ); 
}
add_action( 'widgets_init', 'wpb_widgets_init_ad_f1' );

function after_header_ad_f1() {
if (  is_bbpress() && is_active_sidebar( 'after_header_ad_f1' ) ) : 
    echo " <div id='header_ad_f1' class='container'>";
     dynamic_sidebar( 'after_header_ad_f1' ); 
    echo  "</div>";
    endif; 
}
add_action( 'ava_before_content', 'after_header_ad_f1' );