A PHP Error was encountered

Severity: 8192

Message: str_replace(): Passing null to parameter #1 ($search) of type array|string is deprecated

Filename: MX/Controller.php

Line Number: 50

Backtrace:

File: /home/bobjones/public_html/application/third_party/MX/Controller.php
Line: 50
Function: str_replace

File: /home/bobjones/public_html/application/core/MY_Controller.php
Line: 19
Function: __construct

File: /home/bobjones/public_html/application/modules/welcome/controllers/Contact_us.php
Line: 6
Function: __construct

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