custom post type don’t appear in the home page

by

Find functions.php in your theme and add this code:

function add_custom_pt( $query ) {
  if ( !is_admin() && $query->is_main_query() ) {
    $query->set( 'post_type', array( 'post', 'cptslug1', 'cptslug2' ) );
  }
}
add_action( 'pre_get_posts', 'add_custom_pt' );

Change array values to match your post type slugs (add as many as you need), but keep ‘post’.