Fatal error: Uncaught RuntimeException: Required DB environment variable is missing: DB_HOST in /var/www/html/api/includes/aonlineDB.php:92 Stack trace: #0 /var/www/html/api/includes/aonlineDB.php(43): AOnline\Includes\aonlineDB->getRequiredEnvironmentVariable('DB_HOST') #1 /var/www/html/api/includes/aonlineOG.php(33): AOnline\Includes\aonlineDB->__construct() #2 /var/www/html/api/includes/og_header.php(25): AOnline\Includes\aonlineOG->__construct('', NULL) #3 /var/www/html/www/index.php(12): include_once('/var/www/html/a...') #4 {main} thrown in /var/www/html/api/includes/aonlineDB.php on line 92