A PHP Error was encountered

Severity: 8192

Message: explode(): Passing null to parameter #2 ($string) of type string is deprecated

Filename: controllers/Media.php

Line Number: 40

Backtrace:

File: /www/wwwroot/iibsoor/application/controllers/Media.php
Line: 40
Function: explode

File: /www/wwwroot/iibsoor/index.php
Line: 315
Function: require_once