Hi JAMES QUIGLEY,
If you have not updated the Theme then please get the latest Theme Version from the login account under Downloads.
If your Site is about only a single language then you can directly set your desired Language text on respective customizer options. (‘Appearance > Customizer > Banner > Banner Slider/Featured Post 1/Featured Posts 2).
If your Site is for multi-language then you can find the text that you Set for title of Banner Slider, Featured Post 1, Featured Post 2 on the string list of the plugin that you used for multi-language. Every plugins might show the strings in different ways so you need to follow the documentation of related plugin. After you get your strings (titles of banner sections) then you can add the the translated text for respective title.
please let us know if the issue still persists.
Thanks