A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: models/Sitio_web_model.php

Line Number: 221

Backtrace:

File: /home/omiagsor/application/models/Sitio_web_model.php
Line: 221
Function: _error_handler

File: /home/omiagsor/application/controllers/Sitio_Web.php
Line: 374
Function: get_curso_info

File: /home/omiagsor/public_html/index.php
Line: 315
Function: require_once