Fatal error: Uncaught PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'PDGS04' in 'where clause' in /home/daw1/daw1.javicastillo.org/models/Materia.php:25 Stack trace: #0 /home/daw1/daw1.javicastillo.org/models/Materia.php(25): PDOStatement->execute() #1 /home/daw1/daw1.javicastillo.org/controllers/MateriaController.php(23): Materia->delete() #2 /home/daw1/daw1.javicastillo.org/public/index.php(13): MateriaController->delete('PDGS04') #3 {main} thrown in /home/daw1/daw1.javicastillo.org/models/Materia.php on line 25