/**
  * Get instance
  *
  * @return GetSiteControlWordPress|null
  */
 public static function init()
 {
     if (is_null(self::$getSiteControl)) {
         self::$getSiteControl = new self();
         self::add_actions();
         self::$settings = self::gsc_settings();
         if (empty(self::$settings) || self::$version !== self::$settings['version']) {
             self::install(self::$settings);
         }
     }
     return self::$getSiteControl;
 }