A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: Frontend/Productos.php

Line Number: 25

Backtrace:

File: /home2/ecoair/public_html/application/controllers/Frontend/Productos.php
Line: 25
Function: _error_handler

File: /home2/ecoair/public_html/index.php
Line: 315
Function: require_once