A PHP Error was encountered

Severity: Notice

Message: Undefined index: id_curso

Filename: ia/chat.php

Line Number: 67

Backtrace:

File: /opt/rh/httpd24/root/var/www/html/dev/MFE/application/views/ia/chat.php
Line: 67
Function: _error_handler

File: /opt/rh/httpd24/root/var/www/html/dev/MFE/application/controllers/SaberMas/Materia.php
Line: 100
Function: view

File: /opt/rh/httpd24/root/var/www/html/dev/MFE/index.php
Line: 327
Function: require_once