A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Captcha.php

Line Number: 42

Backtrace:

File: /home/conithub/wwwskshippingagencycom/application/controllers/Captcha.php
Line: 42
Function: _error_handler

File: /home/conithub/wwwskshippingagencycom/index.php
Line: 316
Function: require_once