Fatal error: Uncaught TypeError: Argument 1 passed to SwagHidePrices\Services\HidePricesService::normalizeCustomerGroups() must be of the type string, null given, called in /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Services/HidePricesService.php on line 169 and defined in /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Services/HidePricesService.php:179 Stack trace: #0 /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Services/HidePricesService.php(169): SwagHidePrices\Services\HidePricesService->normalizeCustomerGroups() #1 /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Services/HidePricesService.php(93): SwagHidePrices\Services\HidePricesService->getValidCustomerGroups() #2 /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Subscriber/HidePricesSubscriber.php(63): SwagHidePrices\Services\HidePricesService->shouldShowPrices() #3 /var/www/clients/client3/web12/web/engine/Library/Enlight/Event/Handler/Default.php(90): SwagHidePrices\Subs in /var/www/clients/client3/web12/web/custom/plugins/SwagHidePrices/Services/HidePricesService.php on line 179