A PHP Error was encountered

Severity: Notice

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

Filename: ver3/m_menu.php

Line Number: 118

Backtrace:

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/m_menu.php
Line: 118
Function: _error_handler

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Page.php
Line: 408
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once