Hi Nicholas,
After activating the ZeroError theme, please setup homepage using following
Go to Settings » Reading » Front page displays
Click on radio button of Your latest posts
Go to Appearance » Theme Options and click on Restore Defaults in bottom side
To add image slides to homepage slider go to the Appearance » Theme Options » Homepage Slider
To remove the text and button from homepage slider image
go to Appearance -> Theme Options -> Basic Settings -> Custom CSS
add below css code in custom css box
.nivo-caption { display:none !important; }
Please check the documentation to customize the theme
https://www.gracethemes.com/documentation/zeroerror/
If still you are getting any problem, you can send your website URL and WordPress admin login details for temporary at [email protected] so we can check and assist you.
Regards
Grace Themes