Você pode copiar um site para localhost de uma forma alternativa sem usar nenhum plugin extra.
Etapas:
1. Export the database using phpmyadmin interface and save that as a .sql file.
2. Extract wordpress.zip file downloaded from wordpress.org to MAMP/htdocs.
3. Copy wp-content folder and wp_config.php from old site and Paste it under new wordpress folder.(Replace the files)
4. Create a database in new host with same database name and import the .sql file.
5. Goto localhost:8888 in your browser. (Before this, you need to change document root to this wordpress folder by using preferences in MAMP) You will get your site.
Notas:
If you find any old urls in your site, (Broken urls to media items) You can do a search and replace in database using the following sql queries. Do this one by one inside your wordpress database.
UPDATE wp_posts SET guid = replace(guid, 'http://old-site','http://new-site');
UPDATE wp_posts SET post_content = replace(post_content, 'http://old-site', 'new-site');
UPDATE wp_postmeta SET meta_value = replace(meta_value,'old-site','new-site');