Css responsive web thay đổi vị trí khối div

Severity: Notice

Message: Trying to access array offset on value of type bool

Filename: drivers/Cache_file.php

Line Number: 277

Backtrace:

File: /home/u738372291/domains/dandev.net/public_html/application/core/MY_Controller.php
Line: 46
Function: get

File: /home/u738372291/domains/dandev.net/public_html/application/controllers/Home.php
Line: 6
Function: __construct

File: /home/u738372291/domains/dandev.net/public_html/index.php
Line: 315
Function: require_once