Fatal error: Uncaught TypeError: JTL\Shop::setLanguage(): Argument #1 ($languageID) must be of type int, null given, called in /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Session/Frontend.php on line 361 and defined in /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Shop.php:265 Stack trace: #0 /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Session/Frontend.php(361): JTL\Shop::setLanguage(NULL, NULL) #1 /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Session/Frontend.php(109): JTL\Session\Frontend->updateGlobals() #2 /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Session/Frontend.php(67): JTL\Session\Frontend->setStandardSessionVars() #3 /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Session/Frontend.php(56): JTL\Session\Frontend->__construct(true, 'JTLSHOP') #4 /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/globalinclude.php(70): JTL\Session\Frontend::getInstance() #5 /www/htdocs/w01e91c0/dev-sportdeal24.de/index.php(7): require('/www/htdocs/w01...') #6 {main} thrown in /www/htdocs/w01e91c0/dev-sportdeal24.de/includes/src/Shop.php on line 265