A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: models/Activity_Model.php

Line Number: 99

Backtrace:

File: /var/www/html/application/models/Activity_Model.php
Line: 99
Function: _error_handler

File: /var/www/html/application/controllers/Activity.php
Line: 34
Function: fetchactivity

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

Error

An Error Was Encountered

Unable to load the requested file: website/header.php