A PHP Error was encountered

Severity: Notice

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

Filename: page/abstract_submission.php

Line Number: 4

Backtrace:

File: /home/flyingnepal/psnnepal.org.np/conference/conference/views/pages/page/abstract_submission.php
Line: 4
Function: _error_handler

File: /home/flyingnepal/psnnepal.org.np/conference/conference/views/pages/pages.php
Line: 137
Function: view

File: /home/flyingnepal/psnnepal.org.np/conference/conference/controllers/Home.php
Line: 161
Function: view

File: /home/flyingnepal/psnnepal.org.np/conference/conference/controllers/Home.php
Line: 60
Function: abstract_submission

File: /home/flyingnepal/psnnepal.org.np/conference/index.php
Line: 315
Function: require_once