A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Checkout.php

Line Number: 1371

Backtrace:

File: C:\inetpub\vhosts\smartcapita.com\websites.smartcapita.com\ecom\furniture-store\application\controllers\Checkout.php
Line: 1371
Function: _error_handler

File: C:\inetpub\vhosts\smartcapita.com\websites.smartcapita.com\ecom\furniture-store\index.php
Line: 497
Function: require_once