A PHP Error was encountered

Severity: Warning

Message: call_user_func_array() expects parameter 1 to be a valid callback, class 'Index' does not have a method '_alphabet'

Filename: controllers/Index.php

Line Number: 23

Backtrace:

File: /www/wwwroot/allconverter/application/controllers/Index.php
Line: 23
Function: _error_handler

File: /www/wwwroot/allconverter/index.php
Line: 315
Function: require_once