Fatal error: Uncaught Error: Call to undefined function env() in /mnt/volume_lon1_01/backend/adminseppi/vendor/laravel/lumen-framework/config/database.php:18 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/laravel/lumen-framework/config/database.php on line 18