Fatal error: Uncaught Error: Undefined constant "APP_ENV" in /var/www/api.simplifi.ro/config/checkin_com.php:4 Stack trace: #0 /var/www/api.simplifi.ro/public/index.php(33): require_once() #1 {main} thrown in /var/www/api.simplifi.ro/config/checkin_com.php on line 4