Fatal error: Uncaught Error: Class 'League\Config\Exception\InvalidConfigurationException' not found in /mnt/volume_lon1_01/backend/adminseppi/vendor/league/config/src/Exception/ValidationException.php:18 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/league/config/src/Exception/ValidationException.php on line 18