A PHP Error was encountered

Severity: Notice

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

Filename: models/CourseModel.php

Line Number: 8

Backtrace:

File: /home/ritwebpanel/public_html/rit.edu.in/application/models/CourseModel.php
Line: 8
Function: _error_handler

File: /home/ritwebpanel/public_html/rit.edu.in/application/controllers/Courses.php
Line: 20
Function: CourseCheck

File: /home/ritwebpanel/public_html/rit.edu.in/application/controllers/Courses.php
Line: 7
Function: index

File: /home/ritwebpanel/public_html/rit.edu.in/index.php
Line: 315
Function: require_once