WordPress Website Templates
Find Professional WordPress themes Easy and Simple to Setup
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
To setup homepage slider go to the Appearance » Theme Options » Homepage Slider
Also please check by deactivating all the installed plugins.
If you are still getting problem, please send your website URL and WordPress admin login details for temporary so we can check and solve your issue quickly.