An uncaught Exception was encountered

Type: TypeError

Message: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class Home does not have a method "error_404"

Filename: /home1/sketchportraitpa/public_html/system/core/CodeIgniter.php

Line Number: 532

Backtrace:

File: /home1/sketchportraitpa/public_html/index.php
Line: 315
Function: require_once