A PHP Error was encountered

Severity: 8192

Message: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

Filename: core/Common.php

Line Number: 727

Backtrace:

File: /home2/username/public_html/application/controllers/Request.php
Line: 1797
Function: xss_clean

File: /home2/username/public_html/index.php
Line: 326
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home2/username/public_html/system/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home2/username/public_html/application/controllers/Request.php
Line: 1836
Function: redirect

File: /home2/username/public_html/index.php
Line: 326
Function: require_once