Fatal error: Uncaught TypeError: Plugin\wnm_greeting_cards\Bootstrap::getMessageCardTemplateArticleId(): Return value must be of type int, null returned in /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/plugins/wnm_greeting_cards/Bootstrap.php:148 Stack trace: #0 /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/plugins/wnm_greeting_cards/Bootstrap.php(62): Plugin\wnm_greeting_cards\Bootstrap->getMessageCardTemplateArticleId() #1 /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/includes/src/Shop.php(427): Plugin\wnm_greeting_cards\Bootstrap->boot() #2 /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/includes/globalinclude.php(97): JTL\Shop::bootstrap() #3 /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/index.php(5): require('...') #4 {main} thrown in /var/www/vhosts/bierselect.de/hofbraeu-muenchen.bierselect.de/plugins/wnm_greeting_cards/Bootstrap.php on line 148