I exported my database into an .sql file, created a new database on my server, imported the sql, and uploaded all the corresponding files to the server. Many of the theme elements have reverted to their standard state. All of the social media links point to this domain (kriesi.at) instead of my client's, which I entered when developing the site locally. In addition to this, the header isn't displaying the correct logo (it displays the BroadScope logo instead), and the featured images aren't working either.
Thanks for your help!