A PHP Error was encountered

Severity: Notice

Message: Undefined index: sessao

Filename: controllers/Carrinho.php

Line Number: 18

Backtrace:

File: /home/u475779423/domains/emgo.com.br/public_html/application/controllers/Carrinho.php
Line: 18
Function: _error_handler

File: /home/u475779423/domains/emgo.com.br/public_html/index.php
Line: 292
Function: require_once