A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/kmik4313/public_html/application/models/Kategori_m.php:1)

Filename: helpers/url_helper.php

Line Number: 565

Backtrace:

File: /home/kmik4313/public_html/application/libraries/Session_library.php
Line: 18
Function: redirect

File: /home/kmik4313/public_html/application/controllers/Favorit.php
Line: 19
Function: cekSession

File: /home/kmik4313/public_html/index.php
Line: 315
Function: require_once