A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/news.php

Line Number: 1276

Backtrace:

File: E:\website\php\2019\ninhbinh\demo\web\application\controllers\news.php
Line: 1276
Function: _error_handler

File: E:\website\php\2019\ninhbinh\demo\index.php
Line: 315
Function: require_once