A PHP Error was encountered

Severity: 8192

Message: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated

Filename: controllers/Program.php

Line Number: 205

Backtrace:

File: /home/u1735009/public_html/application/controllers/Program.php
Line: 205
Function: strip_tags

File: /home/u1735009/public_html/index.php
Line: 315
Function: require_once