A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /opt/apache/www/mou3jam.online/application/models/Dcategory_model.php:1)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /opt/apache/www/mou3jam.online/application/controllers/VoiceDictionaries.php
Line: 17
Function: redirect

File: /opt/apache/www/mou3jam.online/index.php
Line: 315
Function: require_once