Warning: Use of undefined constant ENVIRONMENT - assumed 'ENVIRONMENT' (this will throw an Error in a future version of PHP) in /var/www/html/vendor/codeigniter4/framework/system/CodeIgniter.php on line 596

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/vendor/codeigniter4/framework/system/CodeIgniter.php:596) in /var/www/html/vendor/codeigniter4/framework/system/CodeIgniter.php on line 600
The application environment is not set correctly.