A PHP Error was encountered

Severity: 8192

Message: Required parameter $order_group follows optional parameter $res_id

Filename: models/Site_model.php

Line Number: 3776

Backtrace:

File: /home/restrokings/public_html/application/controllers/Site_front.php
Line: 14
Function: model

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