Fatal error: Uncaught TypeError: date(): Argument #2 ($timestamp) must be of type ?int, string given in /customers/c/4/f/asdservice.com/httpd.www/admin/verhuur2/toestel.inc:42 Stack trace: #0 /customers/c/4/f/asdservice.com/httpd.www/admin/verhuur2/toestel.inc(42): date('d-m-Y', '00:00:00') #1 /customers/c/4/f/asdservice.com/httpd.www/sl/overzicht.php(232): Toestel->next() #2 {main} thrown in /customers/c/4/f/asdservice.com/httpd.www/admin/verhuur2/toestel.inc on line 42