/**
  * Constructor function.
  * @param string $file __FILE__ of the main plugin
  * @access  private
  * @since   1.0.0
  */
 private function __construct($file)
 {
     self::$token = 'ppb-blog-customizer';
     self::$file = $file;
     self::$url = plugin_dir_url($file);
     self::$path = plugin_dir_path($file);
     self::$version = '1.0.0';
     add_action('init', array($this, 'init'));
 }
<?php

/*
Plugin Name: pootle page builder blog customizer
Plugin URI: http://pootlepress.com/
Description: Blog customizer for pootle page builder helps you create a beautiful blog page
Author: pootlepress
Version: 1.0.0
Author URI: http://pootlepress.com/
*/
/** Plugin admin class */
require 'inc/class-admin.php';
/** Plugin public class */
require 'inc/class-public.php';
/** Including Main Plugin class */
require 'class-ppb-blog-customizer.php';
/** Intantiating main plugin class */
pootle_page_builder_blog_customizer::instance(__FILE__);