Fatal error: Uncaught Error: Call to undefined function env() in /home/v2appclykk/public_html/routing_management/vendor_01/laravel/lumen-framework/config/services.php:18 Stack trace: #0 {main} thrown in /home/v2appclykk/public_html/routing_management/vendor_01/laravel/lumen-framework/config/services.php on line 18