protected static function loadSettings()
 {
     if (self::$settings !== null) {
         return;
     }
     $s = Main\Config\Option::get('crm', 'b24_settings', '', '');
     self::$settings = $s !== '' ? unserialize($s) : array();
     $isLicensed = self::isPaidLicense();
     if (!isset(self::$settings['enableRestBizProc'])) {
         self::$settings['enableRestBizProc'] = $isLicensed;
     } else {
         if (!$isLicensed) {
             self::$settings['enableRestBizProc'] = false;
         }
     }
 }