Using LCSK (Live Chat Starter Kit) on ASP.NET WebForms Application

I use LCSK to implement Live Chat on my website, based on ASP.NET4.5 WebForms.

When I try to configure it using Install.html page, the Save Changes button does nothing.

The message "Configuring your installation You can configure some basics information here. After the first install you will be prompt to login to modify config values on this page. If you forget your admin password, simply remove the config file on your App_Data folder." is written on the page, but I don't have App_Data folder in my solution.

Any help would be appreciated.