Fatal error: Uncaught Error: Interface "Fusion\Bulkapi\Api\InventoryRepositoryInterface" not found in /var/www/magento/html/app/code/Fusion/Bulkapi/Model/InventoryRepository.php:21 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Fusion/Bulkapi/Model/InventoryRepository.php on line 21