A PHP Error was encountered

Severity: Notice

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

Filename: amp/Blog.php

Line Number: 47

Backtrace:

File: /home/bkpsdm/public_html/application/controllers/frontend/amp/Blog.php
Line: 47
Function: _error_handler

File: /home/bkpsdm/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/bkpsdm/public_html/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/bkpsdm/public_html/application/controllers/frontend/amp/Blog.php
Line: 49
Function: redirect

File: /home/bkpsdm/public_html/index.php
Line: 315
Function: require_once