Fatal error: Uncaught Magento\Framework\Exception\LocalizedException: Must be category model instance or its id. in /home/www/html/vendor/magento/module-catalog/Model/Layer.php:230
Stack trace:
#0 /home/www/html/lite/classes/Controller/Product.php(234): Magento\Catalog\Model\Layer->setCurrentCategory('malachit-schmuc...')
#1 /home/www/html/lite/classes/Controller.php(128): Controller_Product->categoryAction('malachit-schmuc...')
#2 /home/www/html/lite/classes/Controller/Product.php(13): Controller->dispatch()
#3 /home/www/html/lite/classes/MagentoLite.php(272): Controller_Product->dispatch()
#4 /home/www/html/lite/index.php(36): MagentoLite::run()
#5 /home/www/html/index.php(38): include('/home/www/html/...')
#6 {main}
thrown in /home/www/html/vendor/magento/module-catalog/Model/Layer.php on line 230