Fatal error: Uncaught TypeError: date_format(): Argument #1 ($object) must be of type DateTimeInterface, false given in /www/htdocs/w01f35d6/moorwiesen.de/smaho/personal.php:16 Stack trace: #0 /www/htdocs/w01f35d6/moorwiesen.de/smaho/personal.php(16): date_format(false, 'd.m.Y') #1 /www/htdocs/w01f35d6/moorwiesen.de/smaho/index.php(183): include('/www/htdocs/w01...') #2 {main} thrown in /www/htdocs/w01f35d6/moorwiesen.de/smaho/personal.php on line 16