Fatal error: Class 'Bitrix\Main\Localization\Loc' not found in F:\Xampp\htdocs\bitrix\modules\main\tools.php on line 3058

Fatal error: Class 'Bitrix\Main\Diag\ExceptionHandlerLog' not found in F:\Xampp\htdocs\bitrix\modules\main\lib\diag\exceptionhandler.php on line 214