Fatal error: Uncaught InvalidArgumentException: Invalid category parameter in /var/www/clients/client1/web4/web/classes/Link.php:448 Stack trace: #0 /var/www/clients/client1/web4/web/modules/visualwebsiteoptimizer/visualwebsiteoptimizer.php(311): LinkCore->getCategoryLink() #1 /var/www/clients/client1/web4/web/modules/visualwebsiteoptimizer/visualwebsiteoptimizer.php(342): VisualWebsiteOptimizer->_getSyncVisualWebOptimizerTag() #2 /var/www/clients/client1/web4/web/classes/Hook.php(984): VisualWebsiteOptimizer->hookHeader() #3 /var/www/clients/client1/web4/web/classes/Hook.php(409): HookCore::coreCallHook() #4 /var/www/clients/client1/web4/web/classes/Hook.php(919): HookCore::callHookOn() #5 /var/www/clients/client1/web4/web/classes/controller/FrontController.php(580): HookCore::exec() #6 /var/www/clients/client1/web4/web/controllers/front/listing/CategoryController.php(126): FrontControllerCore->initContent() #7 /var/www/clients/client1/web4/web/classes/controller/Controller.php(319): CategoryControllerCore->initContent() #8 /var/www/clients/client1/web4/web/classes/Dispatcher.php(510): ControllerCore->run() #9 /var/www/clients/client1/web4/web/index.php(28): DispatcherCore->dispatch() #10 {main} Next PrestaShop\PrestaShop\Core\Exception\CoreException: Invalid category parameter in /var/www/clients/client1/web4/web/classes/Hook.php:422 Stack trace: #0 /var/www/clients/client1/web4/web/classes/Hook.php(919): HookCore::callHookOn() #1 /var/www/clients/client1/web4/web/classes/controller/FrontController.php(580): HookCore::exec() #2 /var/www/clients/client1/web4/web/controllers/front/listing/CategoryController.php(126): FrontControllerCore->initContent() #3 /var/www/clients/client1/web4/web/classes/controller/Controller.php(319): CategoryControllerCore->initContent() #4 /var/www/clients/client1/web4/web/classes/Dispatcher.php(510): ControllerCore->run() #5 /var/www/clients/client1/web4/web/index.php(28): DispatcherCore->dispatch() #6 {main} thrown in /var/www/clients/client1/web4/web/classes/Hook.php on line 422