A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 1

Filename: helpers/site_helper.php

Line Number: 159

Backtrace:

File: /homepages/28/d732465935/htdocs/apexresourcing/application/helpers/site_helper.php
Line: 159
Function: _error_handler

File: /homepages/28/d732465935/htdocs/apexresourcing/application/core/MY_Controller.php
Line: 49
Function: browser_data

File: /homepages/28/d732465935/htdocs/apexresourcing/application/core/MY_Controller.php
Line: 111
Function: register_history

File: /homepages/28/d732465935/htdocs/apexresourcing/index.php
Line: 316
Function: require_once