Fatal error: Uncaught TypeError: JTL\Shop::setLanguage(): Argument #1 ($languageID) must be of type int, null given, called in /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Session/Frontend.php on line 329 and defined in /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Shop.php:371 Stack trace: #0 /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Session/Frontend.php(329): JTL\Shop::setLanguage(NULL, NULL) #1 /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Session/Frontend.php(117): JTL\Session\Frontend->updateGlobals() #2 /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Session/Frontend.php(75): JTL\Session\Frontend->setStandardSessionVars() #3 /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Session/Frontend.php(61): JTL\Session\Frontend->__construct(true, 'JTLSHOP') #4 /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/globalinclude.php(80): JTL\Session\Frontend::getInstance() #5 /www/htdocs/w00b922f/shop-office-store.de-jtl/index.php(5): require('/www/htdocs/w00...') #6 {main} thrown in /www/htdocs/w00b922f/shop-office-store.de-jtl/includes/src/Shop.php on line 371