Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 44617)
+++ wp-includes/functions.php	(working copy)
@@ -6725,9 +6725,10 @@
  * @since 4.9.6
  */
 function wp_privacy_delete_old_export_files() {
-	require_once( ABSPATH . 'wp-admin/includes/file.php' );
+	$exports_dir  = wp_privacy_exports_dir();
+	if ( !is_dir( $exports_dir ) ) return;
 
-	$exports_dir  = wp_privacy_exports_dir();
+	require_once( ABSPATH . 'wp-admin/includes/file.php' ); 
 	$export_files = list_files( $exports_dir, 100, array( 'index.html' ) );
 
 	/**