A PHP Error was encountered

Severity: Notice

Message: Undefined variable: data

Filename: models/User.php

Line Number: 89

Backtrace:

File: /home/smk1je01/public_html/application/models/User.php
Line: 89
Function: _error_handler

File: /home/smk1je01/public_html/application/controllers/Admin.php
Line: 628
Function: get_by_id

File: /home/smk1je01/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/smk1je01/public_html/system/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/smk1je01/public_html/application/controllers/Admin.php
Line: 648
Function: redirect

File: /home/smk1je01/public_html/index.php
Line: 292
Function: require_once