A PHP Error was encountered

Severity: 8192

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

Filename: products/cat_item.php

Line Number: 4

Backtrace:

File: /home/hitech/app/views/front/products/cat_item.php
Line: 4
Function: _error_handler

File: /home/hitech/app/views/front/products/category_products.php
Line: 84
Function: view

File: /home/hitech/app/controllers/Main.php
Line: 332
Function: view

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