A PHP Error was encountered

Severity: Notice

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

Filename: sdn2bumijawa/agenda.php

Line Number: 84

Backtrace:

File: /var/www/sdn2bumijawa.sch.id/application/views/sdn2bumijawa/agenda.php
Line: 84
Function: _error_handler

File: /var/www/sdn2bumijawa.sch.id/application/libraries/Template.php
Line: 16
Function: view

File: /var/www/sdn2bumijawa.sch.id/application/controllers/Agenda.php
Line: 23
Function: load

File: /var/www/sdn2bumijawa.sch.id/index.php
Line: 294
Function: require_once