Fatal error: Uncaught Error: Call to a member function addFolder() on null in /var/www/www-root/data/www/onlinetorg.ltd/catalog/model/catalog/category.php:590 Stack trace: #0 /var/www/www-root/data/www/onlinetorg.ltd/system/engine/loader.php(178): ModelCatalogCategory->getCategoriesForMenu(Array, Array) #1 /var/www/www-root/data/www/onlinetorg.ltd/system/engine/proxy.php(25): Loader->{closure}(Array, Array) #2 /var/www/www-root/data/www/onlinetorg.ltd/catalog/controller/extension/module/category.php(106): Proxy->__call('getCategoriesFo...', Array) #3 /var/www/www-root/data/www/onlinetorg.ltd/system/engine/action.php(57): ControllerExtensionModuleCategory->index(Array) #4 /var/www/www-root/data/www/onlinetorg.ltd/system/engine/loader.php(24): Action->execute(Object(Registry), Array) #5 /var/www/www-root/data/www/onlinetorg.ltd/catalog/controller/common/column_left.php(52): Loader->controller('extension/modul...') #6 /var/www/www-root/data/www/onlinetorg.ltd/system/engine/action.php(57): ControllerCommonColumnLeft->index(Ar in /var/www/www-root/data/www/onlinetorg.ltd/catalog/model/catalog/category.php on line 590