Child Theme Configurator Debug

Hi! First I must say that this plugins seems like a really cool piece of code, thanks a lot for sharing it.
I write to inform you that I found this message as a prompt from the Child Theme Configurator Plugin, analyzing the theme Neve, from the folks at Theme Isle.

Notice: Undefined index: page in /srv/www/wordpress-one/public_html/wp-content/plugins/moolamojo/models/basic.php on line 157

Hope we can check it together!