Fatal error: Uncaught TypeError: date(): Argument #2 ($timestamp) must be of type ?int, string given in /customers/f/0/9/damiaanschool.be/httpd.www/web/pers.overzicht.detail.php:80 Stack trace: #0 /customers/f/0/9/damiaanschool.be/httpd.www/web/pers.overzicht.detail.php(80): date('d/m/Y H:i:s', '0000-00-00 00:0...') #1 {main} thrown in /customers/f/0/9/damiaanschool.be/httpd.www/web/pers.overzicht.detail.php on line 80