Warning: Trying to access array offset on value of type null in /home/upistacu/public_html/lista.php on line 190
Fatal error: Uncaught Error: Call to a member function obtener() on null in /home/upistacu/public_html/lista.php:190
Stack trace:
#0 {main}
thrown in /home/upistacu/public_html/lista.php on line 190