A PHP Error was encountered

Severity: 8192

Message: Facebook\FacebookApp implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary)

Filename: Facebook/FacebookApp.php

Line Number: 29

Backtrace:

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/vendor/facebook/graph-sdk/src/Facebook/FacebookApp.php
Line: 29
Function: _error_handler

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/vendor/composer/ClassLoader.php
Line: 444
Function: include

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/vendor/composer/ClassLoader.php
Line: 322
Function: Composer\Autoload\includeFile

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/vendor/facebook/graph-sdk/src/Facebook/Facebook.php
Line: 145
Function: loadClass

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/application/libraries/Facebook.php
Line: 56
Function: __construct

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/application/controllers/Principal.php
Line: 9
Function: library

File: /home/londrinaimovel/www.londrinaimovel.com.br/site/index.php
Line: 315
Function: require_once