After you download the package from ThemeForest, please unzip it. You’ll see a file called sandbox.zip, which is the main file needed to upload and install.

Important: One of the most common reasons people have issues is because they try uploading the full zip that includes demo content, theme, documentation…etc which displays the “The package could not be installed. The theme is missing the style.css stylesheet.” error. Please make sure you are uploading only the installable theme which is called ronmi.zip.

Now that you made sure WordPress is up to date you can install the theme and there are two ways to install Sandbox, via WordPress or via FTP.

Install Sandbox via WordPress

Step 1 – Log into your WordPress website and go to Appearance > Themes and click Add New.

Step 2 – Click  Upload Theme.

Step 3 – Browse the sandbox.zip file on your computer and click Install Now.

Step 4 – Once WordPress has unpacked and installed the theme, just click to activate it.

If you get the “Are You Sure You Want To Do This” message when installing ronmi.zip file via WordPress, it means you have an upload file size limit. You need to install the theme via FTP or contact your hosting provider to increase the limit.

Install Sandbox via FTP

Step 1 – Unzip the ronmi.zip file, you’ll get a folder sandbox.

Step 2 – Log into your hosting space via FTP software(Use an FTP client like FileZilla).

Step 3 – Upload that folder to the wp-content/themes folder on your host.

Step 4  – Go to Appearance > Themes and activate the Sandbox theme.