Fatal error: Uncaught TypeError: GeneralFunction::PreviewText(): Argument #1 ($string) must be of type string, null given, called in /web/htdocs/www.ic-sanmarco.edu.it/home/archivio2023/themes/miur/albo-online.php on line 264 and defined in /web/htdocs/www.ic-sanmarco.edu.it/home/archivio2023/generic/function.php:276 Stack trace: #0 /web/htdocs/www.ic-sanmarco.edu.it/home/archivio2023/themes/miur/albo-online.php(264): GeneralFunction->PreviewText() #1 {main} thrown in /web/htdocs/www.ic-sanmarco.edu.it/home/archivio2023/generic/function.php on line 276