A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: models/Auth_model.php

Line Number: 51

Backtrace:

File: /var/www/html/terzamissione/application/models/Auth_model.php
Line: 51
Function: _error_handler

File: /var/www/html/terzamissione/application/controllers/All.php
Line: 30
Function: get_folder_documents

File: /var/www/html/terzamissione/index.php
Line: 315
Function: require_once

Error

An Error Was Encountered

Unable to load the requested file: all/header.php