A PHP Error was encountered

Severity: Notice

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

Filename: auth/login.php

Line Number: 23

Backtrace:

File: /var/www/html/application/views/instafeedv2/front/auth/login.php
Line: 23
Function: _error_handler

File: /var/www/html/application/views/instafeedv2/front/layouts/main.php
Line: 6
Function: view

File: /var/www/html/application/controllers/Auth.php
Line: 22
Function: view

File: /var/www/html/index.php
Line: 315
Function: require_once