Fatal error: Uncaught Error: Cannot instantiate interface Magento\Catalog\Model\Layer\AvailabilityFlagInterface in /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:116 Stack trace: #0 /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Catalog...', Array) #1 /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Catalog...') #2 /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Catalog...') #3 /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/ObjectManager.php(56): Magento\Framework\ObjectManager\Factory\Compiled->create('Amasty\\Shopby\\B...', Array) #4 /usr/home/kiwora0/www/vendor/magento/framework/View/Element/BlockFactory.php(46): Magento\Framework\ObjectMan in /usr/home/kiwora0/www/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php on line 116