A PHP Error was encountered

Severity: Notice

Message: Undefined variable: data

Filename: controllers/Catalogue.php

Line Number: 80

Backtrace:

File: /var/www/html/octopus_quantum/application/controllers/Catalogue.php
Line: 80
Function: _error_handler

File: /var/www/html/octopus_quantum/index.php
Line: 315
Function: require_once