@DilankaMcLovin Hi, I have just tested to build a site in appernetic with the theme angels-ladder and got it working, although it is a theme that is not maintaned by the developer anymore. This theme has no exampleSite folder so a default config file is used and you have to manualy configure it by reading and copy the content from the theme creators README file and paste it in the settings. https://appernetic.io/app/#/dashboard/list/settings
I have synced my project that use this theme here: https://github.com/brorio/appernetic-hugo-project
You can see how I have configured the config file to make it work.
You can also fork my project and then use that as a base for your own project.