A PHP Error was encountered

Severity: Notice

Message: Undefined index: client_id

Filename: controllers/Order.php

Line Number: 55

Backtrace:

File: /app/application/controllers/Order.php
Line: 55
Function: _error_handler

File: /app/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

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

Filename: controllers/Order.php

Line Number: 79

Backtrace:

File: /app/application/controllers/Order.php
Line: 79
Function: header

File: /app/index.php
Line: 317
Function: require_once