A PHP Error was encountered

Severity: Notice

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

Filename: course/diploma.php

Line Number: 34

Backtrace:

File: D:\www\edu\edu2022\application\views\course\diploma.php
Line: 34
Function: _error_handler

File: D:\www\edu\edu2022\application\controllers\Home.php
Line: 545
Function: view

File: D:\www\edu\edu2022\index.php
Line: 315
Function: require_once