Use admin_url instead of using absolute url to support subfolder installs

includes/admin/views/html-notice-redirect-only-download.php

@@ -16,7 +16,7 @@ defined( 'ABSPATH' ) || exit;
 			sprintf(
 				/* translators: %s: Link to settings page. */
 				__( 'Your store is configured to serve digital products using "Redirect only" method. This method is deprecated, <a href="%s">please switch to  a different method instead.</a>', 'woocommerce' ),
-				'/wp-admin/admin.php?page=wc-settings&tab=products&section=downloadable'
+				admin_url( 'admin.php?page=wc-settings&tab=products&section=downloadable' )
 			)
 		);
 		?>