A PHP Error was encountered

Severity: Notice

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

Filename: helpers/custom_helper.php

Line Number: 232

Backtrace:

File: /home/u621886163/domains/chilinh.vn/public_html/application/helpers/custom_helper.php
Line: 232
Function: _error_handler

File: /home/u621886163/domains/chilinh.vn/public_html/application/views/partials/_modals.php
Line: 61
Function: old

File: /home/u621886163/domains/chilinh.vn/public_html/application/views/partials/_header.php
Line: 611
Function: view

File: /home/u621886163/domains/chilinh.vn/public_html/application/controllers/Home.php
Line: 239
Function: view

File: /home/u621886163/domains/chilinh.vn/public_html/index.php
Line: 315
Function: require_once