There doesn't seem to be a configuration file. This is necessary for the application to work.
This setup page will help you create that file. But in some server configurations this might not work. In that case you might need to adjust the folder permissions, or create the config file manually.
Welcome to your new AppGini application! Before getting started, we need some information about your database. You will need to know the following before proceeding:
Database server (host)
Database name
Database username
Database password
The above items were probably supplied to you by your web hosting provider. If you do not have this information, then you will need to contact them or refer to their service documentation before you can continue here. If you're ready, let's start!