A PHP Error was encountered

Severity: 8192

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

Filename: libraries/Generaltasks.php

Line Number: 23

Backtrace:

File: /home/elementapl/public_html/application/libraries/Generaltasks.php
Line: 23
Function: strip_tags

File: /home/elementapl/public_html/application/models/web/Model_metatags.php
Line: 47
Function: subStringContent

File: /home/elementapl/public_html/application/controllers/Productos.php
Line: 28
Function: meta_tags

File: /home/elementapl/public_html/index.php
Line: 292
Function: require_once