Fatal error: Uncaught Error: Class 'Magento\Framework\Api\AttributeValue' not found in /var/www/dizy/vendor/magento/framework/Search/Adapter/Mysql/DocumentFactory.php:64 Stack trace: #0 /var/www/dizy/vendor/magento/framework/Search/Adapter/Mysql/ResponseFactory.php(63): Magento\Framework\Search\Adapter\Mysql\DocumentFactory->create(Array) #1 /var/www/dizy/vendor/magento/framework/Search/Adapter/Mysql/Adapter.php(102): Magento\Framework\Search\Adapter\Mysql\ResponseFactory->create(Array) #2 /var/www/dizy/vendor/magento/module-search/Model/SearchEngine.php(42): Magento\Framework\Search\Adapter\Mysql\Adapter->query(Object(Magento\Framework\Search\Request\Interceptor)) #3 /var/www/dizy/app/code/Amasty/Shopby/Model/Layer/Filter/Attribute.php(473): Magento\Search\Model\SearchEngine->search(Object(Magento\Framework\Search\Request\Interceptor)) #4 /var/www/dizy/app/code/Amasty/Shopby/Model/Layer/Filter/Attribute.php(444): Amasty\Shopby\Model\Layer\Filter\Attribute->getAlteredQueryResponse() #5 /var/www/dizy/app/code/Amasty/Shopby in /var/www/dizy/vendor/magento/framework/Search/Adapter/Mysql/DocumentFactory.php on line 64