Missing features

I installed Coller on my domain which is hosted at Go Daddy. The sample view of the page looks just like the one on the developer site. But when it is installed, many of the features are missing — such as the large image at the top, and the social media buttons at the very top. And menu items such as “Sample Page” have no visible way to modify them. Clearly I am not a programmer who could modify source code to work around these things. Isn’t there an “add-image/change-image” feature for the top image? Or “add social media buttons” feature? Or “add/change menu item name/hyperlink” feature? This blog theme is attractive, but cannot be used the way it is.