Fatal error: Uncaught Error: Interface "Sylius\Bundle\ThemeBundle\Configuration\Filesystem\ConfigurationLoaderInterface" not found in /home/flighto/e-commerce/vendor/sylius/theme-bundle/src/Configuration/Filesystem/JsonFileConfigurationLoader.php:18 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius/theme-bundle/src/Configuration/Filesystem/JsonFileConfigurationLoader.php on line 18