WP Migrate DB Pro Media Files – can't obtain from localhost

Successfully installed the addon in remote host, but can’t do it within localhost.

Using xammp on Linux.

Result is:
An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums.

And URL:

http://localhost/parenting/wp-admin/update.php?action=install-plugin&plugin=wp-migrate-db-pro-media-files&_wpnonce=75826cd021