Fatal error: Uncaught TypeError: Argument 1 passed to Periodos::isPeriodoGraduacao() must be of the type string, null given, called in /var/www/html/alfa/class/app.view/Academico/WebDiario/TurmasFormView.class.php on line 972 and defined in /var/www/html/alfa/class/app.model/Academico/Periodos.class.php:979 Stack trace: #0 /var/www/html/alfa/class/app.view/Academico/WebDiario/TurmasFormView.class.php(972): Periodos->isPeriodoGraduacao() #1 /var/www/html/alfa/class/app.view/Academico/WebDiario/TurmasFormView.class.php(921): TurmasFormView::getHtmlActionsButton() #2 /var/www/html/alfa/class/sys.html/core/TMaster.class.php(506): TurmasFormView->__construct() #3 /var/www/html/alfa/class/sys.html/control/TFormControl.class.php(15): TMaster::getView() #4 /var/www/html/alfa/class/app.control/Academico/WebDiario/TurmasFormControl.class.php(12): TFormControl->__construct() #5 /var/www/html/alfa/class/sys.html/core/TMaster.class.php(531): TurmasFormControl->__construct() #6 /var/www/html/alfa/class/sys.html/core/TMaster.class.php(3 in /var/www/html/alfa/class/app.model/Academico/Periodos.class.php on line 979