A PHP Error was encountered

Severity: Warning

Message: Undefined array key "cuaderno_asignado"

Filename: controllers/Alumnos.php

Line Number: 86

Backtrace:

File: /homepages/33/d349327298/htdocs/otraeducacion/application/controllers/Alumnos.php
Line: 86
Function: _error_handler

File: /homepages/33/d349327298/htdocs/otraeducacion/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /homepages/33/d349327298/htdocs/otraeducacion/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /homepages/33/d349327298/htdocs/otraeducacion/application/controllers/Alumnos.php
Line: 101
Function: redirect

File: /homepages/33/d349327298/htdocs/otraeducacion/index.php
Line: 317
Function: require_once