Fatal error: Uncaught TypeError: JTL\Shop::setLanguage(): Argument #1 ($languageID) must be of type int, null given, called in /var/www/partworksde/httpdocs/includes/src/Session/Frontend.php on line 385 and defined in /var/www/partworksde/httpdocs/includes/src/Shop.php:373 Stack trace: #0 /var/www/partworksde/httpdocs/includes/src/Session/Frontend.php(385): JTL\Shop::setLanguage() #1 /var/www/partworksde/httpdocs/includes/src/Session/Frontend.php(124): JTL\Session\Frontend->updateGlobals() #2 /var/www/partworksde/httpdocs/includes/src/Session/Frontend.php(80): JTL\Session\Frontend->setStandardSessionVars() #3 /var/www/partworksde/httpdocs/includes/src/Session/Frontend.php(66): JTL\Session\Frontend->__construct() #4 /var/www/partworksde/httpdocs/includes/globalinclude.php(70): JTL\Session\Frontend::getInstance() #5 /var/www/partworksde/httpdocs/index.php(7): require('...') #6 {main} thrown in /var/www/partworksde/httpdocs/includes/src/Shop.php on line 373