An uncaught Exception was encountered

Type: Error

Message: Call to undefined method CI_DB_mysqli_result::where()

Filename: /home/u423259484/domains/emergicareus.com/public_html/application/controllers/Welcome.php

Line Number: 364

Backtrace:

File: /home/u423259484/domains/emergicareus.com/public_html/index.php
Line: 315
Function: require_once