Change admin admin to get WooConvo notification

functions.php

// Add this code at theme's function.php at bottom

add_filter('wooconvo_message_receivers', 'wooconvo_change_admin_email', 10, 2)

function wooconvo_message_receivers($receivers, $is_admin) {
  if( $is_admin ) {
      $receivers = array('[email protected]'); // add more email if need in array
  }
return $receivers;
}

not works