Fatal error: Class 'CAllDatabase' not found in E:\Program Files\Bitrix Environment\www\bitrix\modules\main\classes\mysql\database.php on line 15

Fatal error: Class 'Bitrix\Main\Diag\ExceptionHandlerLog' not found in E:\Program Files\Bitrix Environment\www\bitrix\modules\main\lib\diag\exceptionhandler.php on line 214