Fatal error: Uncaught TypeError: Argument 1 passed to Events::getEventTicket() must be of the type integer, null given, called in /var/www/vhosts/ticketticker.de/page/pages/show.php on line 10 and defined in /var/www/vhosts/ticketticker.de/resources/classes/Events.php:57 Stack trace: #0 /var/www/vhosts/ticketticker.de/page/pages/show.php(10): Events->getEventTicket(NULL) #1 /var/www/vhosts/ticketticker.de/page/index.php(88): require('/var/www/vhosts...') #2 {main} thrown in /var/www/vhosts/ticketticker.de/resources/classes/Events.php on line 57