A PHP Error was encountered

Severity: Warning

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

Filename: user/index.php

Line Number: 75

Backtrace:

File: /var/CzyProgram/htdocs/application/views/w/user/index.php
Line: 75
Function: _error_handler

File: /var/CzyProgram/htdocs/application/controllers/User.php
Line: 39
Function: view

File: /var/CzyProgram/htdocs/application/core/My_Controller.php
Line: 32
Function: index

File: /var/CzyProgram/htdocs/public/index.php
Line: 293
Function: require_once