Upload theme folder into your server wordpress installation and then upload database. We recommend to use WP migrate DB plugin. To move database and automatically replace old url’s with the new ones.
Or you can use a plugin like https://wordpress.org/plugins/search-and-replace/ to replace the old path with new path.
Since you still have a copy of the site somewhere which is working without any issue , you can use a plugin like https://wordpress.org/plugins/duplicator/ and then move your site to a different location which will take care of the path issue for you.
