A PHP Error was encountered

Severity: Notice

Message: Undefined index: previous_page_name

Filename: template/header-checkout.php

Line Number: 3

Backtrace:

File: /var/www/html/eforceapps.com.br/application/views/frontend/template/header-checkout.php
Line: 3
Function: _error_handler

File: /var/www/html/eforceapps.com.br/application/views/frontend/login.php
Line: 17
Function: view

File: /var/www/html/eforceapps.com.br/application/controllers/Site.php
Line: 150
Function: view

File: /var/www/html/eforceapps.com.br/index.php
Line: 317
Function: require_once