Fatal error: Uncaught Error: Class "Magento\Framework\Logger\Handler\Base" not found in /var/www/magento/html/app/code/Fusion/Bulkapi/Logger/Handler/Custom.php:18 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Fusion/Bulkapi/Logger/Handler/Custom.php on line 18