A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Quiz_Controller.php

Line Number: 55

Backtrace:

File: /home/cafsindia/lms_cafsinfotech_in/application/controllers/Quiz_Controller.php
Line: 55
Function: _error_handler

File: /home/cafsindia/lms_cafsinfotech_in/index.php
Line: 342
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/cafsindia/lms_cafsinfotech_in/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/cafsindia/lms_cafsinfotech_in/application/controllers/Quiz_Controller.php
Line: 74
Function: redirect

File: /home/cafsindia/lms_cafsinfotech_in/index.php
Line: 342
Function: require_once