A PHP Error was encountered

Severity: Notice

Message: Trying to get property 'relacao' of non-object

Filename: controllers/Livros.php

Line Number: 73

Backtrace:

File: /var/www/html/application/modules/livros/controllers/Livros.php
Line: 73
Function: _error_handler

File: /var/www/html/application/modules/livros/controllers/Livros.php
Line: 33
Function: getLoggedUserRelacao

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