A PHP Error was encountered

Severity: Notice

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

Filename: view/page.php

Line Number: 20

Backtrace:

File: /home2/wasib/public_html/application/views/view/page.php
Line: 20
Function: _error_handler

File: /home2/wasib/public_html/application/controllers/Details.php
Line: 107
Function: view

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