Break WP-Admin 1.4.5

the latest release of the plugin break the wordpress admin.

PHP Fatal error: require(): Failed opening required ‘classes/class-admin-setting.php’ (include_path=’.:’) in /var/www/vhosts/dslr360.com/httpdocs/wp-content/plugins/color-and-image-swatches-for-variable-product-attributes/plugin.php on line 34, referer: https://www.dslr360.com/wp-admin/index.php

the class: classes/class-admin-setting.php is missing.

I had to comment out:

if( is_admin() )
{

// require ‘classes/class-admin-setting.php’;

}