If you run into the issue of links to your child pages being broken, it may be because you're not running WordPress in the root directory and this plugin doesn't account for that. Here is the fix:
In excerpts-from-children.php, change line 43 from:
$output .= '<p class="read-more"><a href="/' . make_clickable(get_page_uri($child->ID)) . '">Read more »</a></p>';
to:
$output .= '<p class="read-more"><a href="' . get_bloginfo('url') . '/'. make_clickable(get_page_uri($child->ID)) . '">Read more »</a></p>';
