Fatal error: Uncaught Error: Call to a member function query() on null in C:\Apache24\htdocs\soitec\persistencia\CdDAO.php:52 Stack trace: #0 C:\Apache24\htdocs\soitec\pkg\frmtela.php(55): CdDAO->getCampos() #1 {main} thrown in C:\Apache24\htdocs\soitec\persistencia\CdDAO.php on line 52