A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: views/export.php

Line Number: 60

Backtrace:

File: /home/vhouse/application/views/export.php
Line: 60
Function: _error_handler

File: /home/vhouse/application/controllers/Export.php
Line: 38
Function: view

File: /home/vhouse/index.php
Line: 315
Function: require_once