After installing the plugin on WordPress 4.5 running on PHP 7 I caught the following fatal error:
PHP Fatal error: Uncaught Error: Call to undefined function mysql_insert_id() in /my-server-url/wp-content/plugins/verde_plugin/framework/framework.php:303
Instead of using mysql_insert_id(), I suggest you use $wpdb->insert_id, which is available in the $wpdb class.