Fatal error: Uncaught ArgumentCountError: mktime() expects at most 6 arguments, 7 given in /homepages/36/d325104817/htdocs/kalender/index.php:26 Stack trace: #0 /homepages/36/d325104817/htdocs/kalender/index.php(26): mktime(6, 0, 0, '10', '17', '2021', 0) #1 {main} thrown in /homepages/36/d325104817/htdocs/kalender/index.php on line 26