It is important that you keep the theme and bundled plugins (those plugins that came with the theme) up to date.
To update the theme please see: https://ghostpool.com/documentation/aardvark/getting-started/updating-the-theme/
Once you've updated the theme you'll likely need to update some of the bundled plugins. To update the bundled plugins please see: https://ghostpool.com/documentation/aardvark/getting-started/updating-the-plugins/