A PHP Error was encountered

Severity: Notice

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

Filename: helpers/html_helper.php

Line Number: 201

Backtrace:

File: /data/www/yau-girls.com/application/helpers/html_helper.php
Line: 201
Function: _error_handler

File: /data/www/yau-girls.com/application/views/portal/aa/en/content/show_atlas.php
Line: 33
Function: getenNavCats

File: /data/www/yau-girls.com/application/controllers/en/MathmaticsContests.php
Line: 63
Function: include

File: /data/www/yau-girls.com/index.php
Line: 333
Function: require_once