A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Gpschool.php

Line Number: 854

Backtrace:

File: /home/v046g17gy2wk/public_html/georgianpublicschool/application/controllers/Gpschool.php
Line: 854
Function: _error_handler

File: /home/v046g17gy2wk/public_html/georgianpublicschool/index.php
Line: 315
Function: require_once