A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Recipes_Controller.php

Line Number: 162

Backtrace:

File: /var/www/vhosts/ziyafet.com.tr/httpdocs/application/controllers/Recipes_Controller.php
Line: 162
Function: _error_handler

File: /var/www/vhosts/ziyafet.com.tr/httpdocs/application/controllers/Recipes_Controller.php
Line: 225
Function: get_materials_as_json

File: /var/www/vhosts/ziyafet.com.tr/httpdocs/index.php
Line: 325
Function: require_once