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A PHP Error was encountered

Severity: Warning

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

Filename: ejercicios/index.php

Line Number: 18

Backtrace:

File: H:\root\home\catrom-001\www\site1\xoc\application\views\ejercicios\index.php
Line: 18
Function: _error_handler

File: H:\root\home\catrom-001\www\site1\xoc\application\controllers\Ejercicios.php
Line: 25
Function: view

File: H:\root\home\catrom-001\www\site1\xoc\index.php
Line: 315
Function: require_once