Fatal error: Uncaught Error: Undefined constant "DB_HOST" in /home/npvieiwz/domains/hotel-challenge.com/public_html/inc/db.php:17 Stack trace: #0 /home/npvieiwz/domains/hotel-challenge.com/public_html/server_web.php(9): require_once() #1 /home/npvieiwz/domains/hotel-challenge.com/public_html/index.php(11): include('/home/npvieiwz/...') #2 /home/npvieiwz/domains/hotel-challenge.com/public_html/index.php(34): absolute_include() #3 {main} thrown in /home/npvieiwz/domains/hotel-challenge.com/public_html/inc/db.php on line 17