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: 353

Backtrace:

File: /var/www/vhosts/medikalturkdergisi.com/httpdocs/application/helpers/custom_helper.php
Line: 353
Function: _error_handler

File: /var/www/vhosts/medikalturkdergisi.com/httpdocs/application/views/partials/_modals.php
Line: 52
Function: old

File: /var/www/vhosts/medikalturkdergisi.com/httpdocs/application/views/partials/_header.php
Line: 163
Function: view

File: /var/www/vhosts/medikalturkdergisi.com/httpdocs/application/controllers/Home_controller.php
Line: 419
Function: view

File: /var/www/vhosts/medikalturkdergisi.com/httpdocs/index.php
Line: 315
Function: require_once