An uncaught Exception was encountered

Type: ArgumentCountError

Message: Too few arguments to function OrderForm::index(), 0 passed in /var/www/app/system/core/CodeIgniter.php on line 534 and exactly 1 expected

Filename: /var/www/app/controllers/Orderform.php

Line Number: 8

Backtrace:

File: /var/www/html/index.php
Line: 399
Function: require_once